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Found 998 results

  1. It's never too early to start talking about the process of shopping around for a dealer, pricing, the ordering process, deposits, and production delivery times. Although we're still months away from orders being accepted, this thread is meant to be a place where everyone can check in and share their experiences as they go through the process. I'm also going to document as many important dates in this initial post as I can. I'll attempt to keep everyone up to date on start of production, any ordering limitations, and when the ordering system will go live. NEW UPDATES AS OF: April 25th, 2018 T1XX- 2019 Chevrolet Silverado and 2019 GMC Sierra - Important Ordering / Production Dates Pre-Production: NOW - Captured Test Fleet Production Confirmed as of March 31st. Fleet Order Entry Avaliable On Crew Cab: 4/26/18 Double Cab: 6/21/18 Regular Cab: TBD Retail Initial Consensus Month Crew Cab: May 1st Double Cab: August 1st Regular Cab: TBD Initial Dealer Order Submission Process (DOSP) Crew Cab: 5/17/18 Double Cab: 8/16/18 Regular Cab: TBD Production Start Up For Dealer Delivery Crew Cab: Quarter 3 - July/August/September Double Cab: Quarter 4 - October November December Regular Cab: TBD 2019 Chevrolet Silverado Start Up Schedule 2019 GMC Sierra Start Up Schedule This post will be updated whenever new information becomes available. Please contact me if you can help clarify any of these dates.
  2. John Goreham Contributing Writer, GM-Trucks.com 9-11-2019 General Motors has announced that NHTSA is mandating a safety recall for the following vehicles: 2014-2018 Chevrolet Silverado and GMC Sierra Pickups (1500 / 2500 / 3500) 2015-2018 Chevrolet Suburban, Tahoe, GMC Yukon vehicles 2015-2017 Cadillac Escalade NHTSA reports that the amount of vacuum created by the vacuum pump may decrease over time. The group says that as the vacuum level drops, the brake assist decreases, and that this increasing braking effort, extending the distance required to stop the vehicle, thereby increasing the risk of a crash. This new recall covers 3.4 million vehicles. The Problem: The brake pump uses engine oil to lubricate itself. If the pump becomes clogged with engine oil sludge the units ability to create vaccum is diminished over time. As a result, braking force and ability also drops. The issue is usually accompanied by a "Service Brake Assist" warning message in the dash. The Fix: GM will reprogram the computer that controls the secondary brake assist pump. The secondary pump will now activate at lower speeds and different situations quicker to compensate for any lost output from the main pump. Since the pumps are not failing, GM has decided not to replace them. GM's number for this recall is N192268490. In compliance with federal law, GM will notify owners, typically by snail mail. GM says that its dealers will reprogram the Electronic Brake Control Module. However, GM has not yet provided a notification schedule. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-458-8006 or GMC customer service at 1-800-462-8782. If you own one of these vehicles and wish to check to see if your vehicle is included (or not) you can do so at this link immediately. As with every safety recall, customers will not be charged by GM for the needed repairs or modifications. NHTSA's public information on this issue indicates that many accidents have been reported to NHTSA including some with injuries. This recall is the result of a NHTSA investigation that lasted nearly a year. In its investigation report, NHTSA noted the following details about the problem:
  3. I am in process of blacking out my 2014 Sierra Crew Cab. I have the chrome window trim at the moment. I see GM sells the Chrome for $450 and the Black plastic for $185. I am hoping I can find someone that wants to make a trade plus some cash. Or... you have black takes offs and already have chrome installed I'll but them direct and sell my chrome take offs separately.
  4. What’s the cheapest most efficient 3/5, 4/6 lowering kit or drop for a 2014 Silverado crew cab standard bed 2wd 5.3???
  5. I have a 99 GMC Sierra 1500 4X4 and i was wondering if there is a specific brand of o2 sensor that i need to use... because someone was telling me that i have to use OEM for this truck because they dont like NON-OEM o2 sensors. and that they act up and jump all over the place. this guy wanted to charge me $89.99 a plug as well... can someone please help me out with this i would greatly appreciate it...
  6. Just wondering if anyone knows what the largest tire is you could fit on an 18” rim on a 2019 Sierra with stock suspension? Currently it sits on the stock 265 65 r18’s. Wondering if 275 70 r18’s would fit perhaps?
  7. American Racing Headers Part number :GM62-14178300LSWC GM Truck 6.2L 2014-2019 Long System These have 150 miles on them. Like new! Cost $1,775 new. Passing a smoking deal on to you. Comes with all components originally sold as a kit from American Racing. ARH long tube headers long system for the 2014-2016 Chevy/GM Truck 6.2L features 304 stainless steel, 1-7/8" primaries, 3" merge collectors, and all the necessary hardware and gaskets for a bolt-on installation. The 2014 & Up GM Truck 6.2L ARH long systems were designed to bolt-on to your factory axle-back or any aftermarket axle-back. Some modification may be required. The American Racing headers require a crossover y-pipe assembly and have converters. Using the catted crossover pipe cause very little restriction and they help to control emissions. Product features on this system includes: 100% Made in the USA - Never Outsourced Made entirely of 304 stainless steel 3/8" thick laser-cut flanges for a warp-free seal Hand-ported TIG welded inlets Optimized primary tube routing for superior fit and performance Merge collectors with scavenger spikes Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability
  8. Just got 2019 Sierra Elevation. Looking at options to install a 20 or 22” LED light bar. Had one in my bumper opening on my 2012 2500 HD and found it indispensable for night time driving in the backwoods. Has anyone installed one yet? Share your pictures of your setup if you have. Thanks!
  9. GM recalls 160,000 pickup trucks in Canada for fire risks, nothing announced in US yet As of right now there is a recall for all GM 1500's years 2014-2018 that have both a rear window defogger and a power sliding rear window. https://www.cnet.com/roadshow/news/gm-recall-pickup-trucks-canada-fire-risks/ That recall has not been expanded to the US. I Just got off the phone with GM and filed a request to have the recall expanded to the US. I would encourage everyone who this applies to in this forum to do the same. It takes about 5-10 min but could save us all a lot of hassle later. HAVE YOUR VIN READY Call GM @1 (866) 522-9559 Reference this recall number: Manufacturer Recall Number N192220470 (This is the recall number from GM in Canada) (reference: https://wwwapps.tc.gc.ca/Saf-Sec-Sur/7/VRDB-BDRV/search-recherche/detail.aspx?lang=eng&mk=0&md=0&fy=0&ty=9999&ft=&ls=0&sy=0&rn=2019325&cf=SearchResult&pg=50) They will tell you that the recall only applies in Canada and not to your VIN. Express to them that the recall needs to be expanded to the US since our vehicles are also affected. Please post here if you have called GM (just so we can keep track) Please also post if you have experienced this issue (smoke, glass breakage, etc) Affected components: electrical – rear window defroster on trucks equipped with the power sliding rear window. Affected vehicles: 2014-2018 Chevrolet Silverado 1500 2015-2019 Chevrolet Silverado HD 2014-2018 Chevrolet Silverado LD 2014-2018 GMC Sierra 1500 2015-2019 GMC Sierra HD 2014-2018 GMC Sierra LD It may be a good idea to sticky this topic.
  10. 2017 sierra A/T crew cab I have the most annoying tick noise over bumps, coming from the b pillar behind my left ear and it is driving me brick house, I've pulled at the trim off put my hands on everything made sure everything is tight, stuff rags in between contact points, I've run out of ideas, anyone have an guidance for me, I'm a ex gm technician of 5 years , I know what I'm doing but of course my own truck baffles me..per usual any new bulletins or tsbs?
  11. Here is a little extra information I found on from GM TechLink with tips and details regarding the lift points on the new T1 GM trucks. Newdude posted something similar in the frame issues topic a while back. I just thought I would add a little extra to that information. Lift Points TIP: Prior to servicing the vehicle using a lift hoist, the vehicle power assist steps must be disabled to prevent accidental activation. Use lift pads/spacers to provide proper clearance between the lift hoist arms and the vehicle’s fixed or power assist steps. After servicing the vehicle, be sure to enable the power assist steps. For lifting the vehicle, various lift points are recommended. (Fig. 13) The lift points are: Circular jack pad Widest point of the frame rail; requires adapter that is wider than the frame rail when using a hoist. Contact your hoist manufacturer for the appropriate adapter. Rear frame contact points Rear axle contact points Differential contact points Fig. 13 For the front locations, the two approved lifting points are the circular jack pad (Fig. 14) and the widest point of the frame rail, which requires an adapter from the hoist manufacturer. (Fig. 15) Fig. 14 Fig. 15 The hoist pads must not contact the rocker panels, the floor pan or, at the front pad location, the front fenders. Lift pad adapters for Challenger and Rotary lifts are available through GM Dealer Equipment. When lifting at the differential (#5) with a floor jack, avoid point loading the center section of the axle, which is aluminum on most rear axles. Use a floor jack with a rubber pad or wood block to prevent damage.
  12. So i have a black 2018 sierra 1500 wt with the stock chrome front bumper amd im looking to change it out for a body colour matched bumper. Does anyone know of the bumper off a same year sierra elevation would fit? Or even better does anyone have a part number that would be a direct replacement? Thanks
  13. After being down nearly 6 months the Denali is almost finished. The shop based out of Hudson, NH “Granite State Dyno and Tune” has been incredible. Super professional with absolutely top notch craftsmanship. Here is the build. 2014 Sierra Denali 6.2L Block: GM 6.2L. Forged crankshaft Forged rods Diamond 10:7:1 Pistons. Precision Race Components ported Cylinder Heads w/ valve job PAC spring/ Valve Kit. Comp Cams rocker arms/trunion Texas Speed & Performance Stage 1 Camshaft +30% fuel lobe TSP AFM delete kit Lingenfelter ported 95mm throttle body Ported L86 intake manifold. All ARP bolts or studs. Fuel: GM ZR1 high volume fuel injectors GM ZR1 fuel pump Armageddon 465 LPH in tank fuel pump Snow Performance Stage 3 Meth Kit with controller and braided lines. Turbo: Borg Warner S480 T6 Turbo 1.32 AR billet 110/96mm. Turbo smart 50mm BOV Turbo Smart 60mm waste gate Pro Boost controller fully wrapped exhaust Cooling/Oil separators Mishimoto fully aluminum Radiator Mishimoto R-Line Intercooler 31x 12x 4” Mishimoto HD Trans Cooler 2X Mishimoto Black Aluminum catch cans. Mishimoto 180 degree thermostat. Transmission: Circle D pro 3 torque converter 2700 stall. I think that sums it up... I will post tuning videos and some driving as they come around.
  14. I really like the bold/big muscular grille on the Sierra. It stands out a lot on Denali with that massive chrome surround. However i don't like chrome. I think this contrast is somehow lost on the AT4 because of the body-colored grille surround. I'm in the process of trying to wrap or paint the grille surround on my AT4 to black but i want to keep my factory red grille surround in-case i ever decide to go back to the stock look. I was looking to buy just the grille surround, wrap or paint it and install. However, it seems the grille is available as one-piece only and you can't get just the surround alone. The whole grille is fairly expensive, over $700. The alternative for me is to buy the accessories grille ($450) in black and just install. I think the accessories grille is the Elevation trim grille and because of my vanity , i don't want to install a Elevation grille on an AT4. I don't believe i can swap the insides. Anyone done this? Grille surround indicated in yellow. Accessories grille in black.
  15. See a lot of questions asked about this and not a lot of set info on the upgrade. Hope this helps even anyone trying to set it up. **READ ALL INSTRUCTIONS AND WATCH ALL VIDEOS PRIOR TO ATTEMPTING PURCHASING OR INSTALLATION** Apple CarPlay / Android Auto functionality is not supported in any 2014-2015 (Many 2016) Silverado/Sierra’s. This is due to neither application being available from Google or Apple when these vehicles being built, therefore not an available option during these model years. The following instructions are designed to simplify the process as much as possible. Three things are required for this upgrade (ONE) Radio Module, (ONE) HMI Module, and (ONE) USB Hub 2016+. Search around for the modules, they are available for purchase from many different locations. EBay, totaled vehicles, junkyards, or other various websites to find them. AGAIN, if the part numbers are not listed below DO NOT purchase them. It is highly encouraged to not try and cut corners with purchasing part numbers of modules not listed as they cannot be flashed to work properly. **DISCONNECT THE BATTERY PRIOR TO INSTALLING FRESHLY UPDATED MODULES** TOOLS REQUIRED: Trim Removal tool 10 mm Socket 7 mm Socket PARTS REQUIRED USB HUB P/N 13519224 (BLACK) P/N 13509943 (WHITE) HMI Module USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITH NAVIGATION. ONLY REQUIRED TO PURCHASE ONE P/N. 84006103 84048396 84096817 84156701 81431943 84296482 USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITHOUT NAVIGATION. ONLY REQUIRED TO PURCHASE ONE P/N. 84096815 84156699 84131941 84296480 84004948 84048398 84131941 84296480 RADIO MODULE USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITH BOSE. ONLY REQUIRED TO PURCHASE ONE P/N. 84062073 84293226 13506371 23402903 USE ONE OF THE BELOW P/N’S IF YOUR TRUCK CAME FROM THE FACTORY WITHOUT BOSE. ONLY REQUIRED TO PURCHASE ONE P/N. 13506387 23402909 84062056 84293243 Once acquiring the parts you can now send them to be flashed. These modules will be flashed to your VIN and will then be plug and play. Copy the link and follow the prompts. http://www.whiteautoandmedia.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=98&category_id=44&option=com_virtuemart&Itemid=54 If you have followed all the directions up and to this point, select yes for hardware match. You can chose if you would like the maps updated on your NAV if you so choose. You will be emailed your order number from WAMS, this is EXTREMELY IMPORTANT. You will be required to ship your parts either FedEx or UPS, they will not accept packages from USPS. You will need to write your order number on the box to ensure your order is properly handled. Turn around is approximately one week from shipment to return. ONLY ship your (ONE) Radio Module and (ONE) HMI Module. Maintain your USB Hub. Once you have received your parts from WAMS you can begin installation. Disconnect your battery prior to installation. To install the radio module watch https://www.youtube.com/watch?v=I2MYuuyqLrs. For the purpose of this install start the video at 1:00. Stop the video at 2:04, the radio module is visible with a green connector on the far left. Simply begin disconnecting all of the connectors plugged into the module, once all are removed you can slide the module out of the dash. It is retained only by the tension of the cables plugged into it. Replace with your new module, you can now continue the video and finish putting the dash back together. Stop the video at 4:10. To install the HMI Module watch https://www.youtube.com/watch?v=sFe2gwlOsD4. Stop the video at 2:00. The module being described behind the crossbar is what you are replacing. Remove all connectors, the module is retained with a plastic clip on top. Installing the module along with the glove box, is self explanatory. Take note of the plastic tabs on the sides of the USB Hub you are preparing to install. Those tabs can be depressed with a dental pick and gradually removed out of place. Once removed, disconnect the harness and reconnect. Installation is now complete. You can now reconnect your battery and start your vehicle. Initial start up might take a few seconds to initialize, and temperature defaulting to 32 degrees is normal. Android Auto and Apple CarPlay require hardwire connection, so to test functionality it needs to be connected to the newly installed USB hub. MVI Inc (https://www.gm-navigation.com/) offers kits and other customization options if the above is not something you feel comfortable acquiring on your own. Hope this helps, should be pretty cut and dry. There might be other methods, but this was the cheapest I discovered. If you have any questions don’t hesitate to ask.
  16. This has been an on-going research project of mine. I discovered when I inquired about having the Trail Boss (TB) factory lift kit (GM part# 84629787) added to my 2019 LT Z71, that I could not have the kit installed due to the secondary composite leaf springs on my truck. Upon further investigation, I found that ONLY the LT with 5.3L (and LT with 3.0 diesel and short box) had the composite leaf springs preventing the truck from having a TB lift added. On the GMC side, I found out the Sierra Denali also uses the same leaf springs with composite secondary as the LT 5.3L. My first impression was, “why the heck would GM do this?” Why wouldn’t the LTZ or High Country (HC) have the the composite leaf? Why would only the mid-level LT have it? The Sierra Denali has it and it’s a $60K+ truck. My LT averages around $45K. I might be a little upset as a LTZ or HC owner to find out my rear suspension is the same as on any Custom trim truck, or even, the base W/T model. I’ve doing a lot of reading on composite leaf springs and there are more advantages to them than disadvantages. Though they are dimensionally bigger (thicker) than the steel counterpart, they weight a lot less, last longer, and offer better damping properties than steel. GM has had a good track record using composite leaf springs. The same technology has been used on the corvette since 1997 with the introduction of the C5. Disadvantages are minimal, such as, they are more expensive to produce, can burn up in a fire, and in this case, can’t be further bent or altered out of original specification. This must be the reason GM won’t allow the lift to be added to vehicles with a composite leaf. I’m sure the leaf could take the additional stress, GM engineers just want to play it safer than sorry. So with this, the Silverado LT 5.3L (and LT 3.0 diesel with short bed) and the Sierra Denali are the only trucks to use the composite leaf. Though I’m disappointed I won’t be able to get the TB lift added, I’m now pretty stoked to find out my LT has more mechanical innovation put into the suspension and I didn’t have to spend $15K+ more for a Sierra Denali to get it. However with this, it seems that if someone is looking for a top-end truck, the Denali would be the better choice over the HC which lacks the particular composite leaf spring feature, if that mattered to the buyer. For reference, attached here are the GM compatibility charts for the Silverado and Sierra to see if you can add the TB lift kit. Also here is a link to the previous discussion about the TB lift kit where you can find more detail about installation and issues surrounding the composite leaf springs.
  17. **SOLD** 2016-2018 GMC Sierra Elevation grille that's been professionally painted black. This is a brand new OEM grille. I ordered it and decided to go with a different style grille, absolutely nothing wrong with this grille. Shipping to continental US is free, local pick-up near St Louis MO. Price is $500.
  18. The AT4 I purchased from the dealer, had everything but the performance package I wanted. So, the same day, I paid the extra cost to have it added. Once it was finished, I was excited about the purchase and the way it sounded. Now, weeks later, I'm starting to get picky about things and making sure everything is how I want it. After my cousin brought it to my attention that I should've made sure all the work was actually done, I looked up what the performance package consisted of. While I can see the performance exhaust is installed--I noticed that the tires on it are not the Goodyear Duratrac the GMC site lists; they're Bridgestone Dueler's. Next, the intake isn't the cone-type performance intake filter, its the flat fliter. Are these an alternate performance package option? Or did I get gipped? If so, would the dealer be willing to recognize these missing details, or would they think I just swapped the parts myself? I'd go down to the dealer right now myself, but the oil field life keeps me at work. Haha. It's a long read, but I'd appreciate the input. Thank you.
  19. Hey guys just wanted to share tis bit of info that I was able to find. It was difficult locating a driveshaft for a 14+ GM 1500 so I hope this helps. After spending tons of time trying to find a less complicated way to upgrade my DS I visited alldrivelines.com (referral from a member) and saw the 800hp rated 2 piece shaft. I called to verify compatibility and was let down by the rep. It is not user friendly for the 4x4's. However, after asking me some great questions Shelby @ Alldrivelines (661) 633-2303 simply said why don't you get our 1,200hp rated driveshaft for the 14+ GM 1500.. I said ..."wait huh". Tell me more. This is currently not listed on the website. It is a 5" 6061 Aluminum shaft with a .125 wall thickness. It is rated for over 1,200 HP and 7,300 ft tq. She can get the correct size for other models too (bespoke). I'm running the following with a Stock Trans/Transfer Case and ride hight. Make: GMC Model: Sierra 1500 Denali Drive: AWD/4WD Loc: Rear Bed: 5'9" Chassis: 143.5"WB Doors: 4 Door After some negotiating it ended up being $580 SHIPPED from CA to MA!!!. (She also suggested the upgraded billet slip yoke rated 1200hp it was an extra $100 so I'm actually $680.00 shipped)** Just a heads up folks. If you want a Driveshaft that can handle high speeds, high HP and TQ this is the place to go. Call Alldriveline (661) 633-2303 and ask for Shelby. Mention my last name Melaas and they'll cut you the same deal. A 1,200 hp rated shaft with the billet yolk for $680 shipped. I don't get anything for it I just asked if I could refer my friends here for the same deal and she said sure. Very nice Lady. Lastly it is a 2-3 day processing and shipping for me (ca - ma) is about 3-4 days. I should have it next Thursday! I will send pics. PM if you have any questions.
  20. Hi all, this is my first ever truck. Came from a ’16 Cadillac CTS which gave me non-stop issues. Decided it was time to try something else. I replaced the CTS with a ’19 Sierra AT4 6.2 fully loaded not too long ago and really loving this truck. Almost too much tech. That 6.2 engine is easily excited . Still getting used to driving and parking such a big vehicle having driven sedans all my life. My biggest peeve so far is that I almost wrecked it during my first week. I hit a medium bump on the road going 35mph and lost control of the truck as it swerved violently into the left lane. Luckily for me, there was no vehicle in the left lane as I think I would have probably hit it. Really shook me for a while. Chalked it up to not being used to driving a truck. After reading this forum quite a bit, I’ve come to the realization it could be a problem with this generation of the Sierra/Silverado. I’m now extremely careful when I go over bumps because it feels like the truck is sliding. I’ll be monitoring that thread to see if a solution crops up. Anyways, happy to join this community. Hope you are all nice .
  21. I normally get vehicles without sunroofs, because the headliner height is lower on vehicles with sunroofs and the headliner presses the left side of my head to the right in the driver seat (confirmed this in a 2019 3500HD on the dealers lot last month). I'm 6'3" and it's mostly in my torso. Does anyone know if the height of the headliner in the front cabin becomes equal with the rear headliner height if the sunroof is not optioned in (in other words without the sunroof is the headliner is closer to the actual roof panel since it's not hiding the sunroof mechanical under it)? I'm hoping to order my 2020 GMC 3500HD Denali SRW soon and this is the one option I'm not sure about yet. I don't care about resell or trade in values because I'm keeping this truck for at least the next 20 years, but if there is no height difference I might as well get the sunroof and pre-pay for my chiropractor.
  22. My 2102 Sierra SLT with automatic dual temperature controls recently started blowing full cold regardless of the temperature setting. It's been hot outside, so I don't mind on short trips, but on a longer ride, I keep turning the temperature up and it just keeps blowing full blast on cold, freezes you out. The outside ambient temperature reads correctly, so I'm thinking maybe the cabin temperature sensors have gone bad. I'm not sure where to find them and how to test them. Otherwise I suppose it's in the Body Control Module? Any ideas will be greatly appreciated.
  23. Hi All, new to the forums, I just bought a 2016 GMC Sierra 2500 HD Denali and I’m having a hard time with the 110v power outlet. Ever since I bought the truck it hasn’t worked. I removed the passenger side panel and checked fuse #35 and noticed it was blown. With the truck off and nothing plugged into the outlet I removed the fuse and the second the new 25amp made contact the fuse blew instantly, I tried it again with another 25 amp fuse and same problem. Took to the dealer and they’re wanting to charge me $600 to diagnose the problem as they have to “rip apart my whole dash” to isolate the issue. I looked inside the outlet and nothing is inside that would short it out. Before buying a plug or an inverter I wanted to ask here if there’s anything else I should try? TIA
  24. Good evening everyone! This is my first posting on the forum! I’ve got a 2011 GMC 2500HD 6.0 that has visited 2 tuners in the central Texas area. I have a TSP VVT2 cam, 3600 converter, forged internals, And exhaust, with more to come soon. I have been told by these shops that my truck could not be dialed in like it needs to be due to missing airflow tables on HPtuners. Supposedly the 2011 HD’s have a odd computer that has to be torque based tuned. I am having idle problems... pulling up to stop lights and turns the truck will die 8/10 times, but starts right back up. Anyone know a way around this hiccup? These shops have gotten it to the best they could, which still is not enough obviously.
  25. Just wanted to post on here, as I have seen no less than a thousand posts with questions about the 6L80E, specifically about the power threshold of a stock unit. I have a 2014 GMC Sierra SLT Crew Cab Standard Bed stock 3.42 gears stock drive shaft stock 20" rims/tires 6.2L fully forged top/bottom end "Armageddon Twin Nagasaki's" (GT3582R's) e-boost 2 gauge Z06/LT4 fuel system 365lph in-tank Armageddon fuel pump QTP exhaust cut-outs and laid down 965rwhp/850 rwtq on a mustang dyno with 18psi on 116 race fuel (cut-outs open). I say all of this because the stock transmission detonated the 4-5-6 shaft (intermediate hub) near the splines. I took it to a "race shop" that said they would upgrade as much as they could; and was told at the time, there were limited aftermarket parts available for the 6L80E. This was mid 2018 with less than 10K miles on the truck and about 500 miles on the engine/turbo build and I discovered that was not entirely true. I drove the truck after their work, with "spirited road driving" while the roads were wet no less. Long story short; they f'd me and I detonated the 4-5-6 stock intermediate shaft again within 100 miles and no traction at all. They apparently replaced all parts that were broken with stock parts! Moving on, I took my truck to a different shop and researched my a** off and found PATC Transmissions. I had a warm and fuzzy after speaking with them and ordered the Phoenix Level 4 Master Rebuild kit among a few other minor accoutrements and re-tuning of my TCM by Mike from Century Automotive. It is now APR 2019 and I am about 1 1/2 weeks away from having the my billet planetary gear mailed to me; for the new, more reputable shop in my area to install all of this PATC bada**ery. If anyone is truly interested, I will post new info once I put the new Phoenix Master Rebuild kit through the ringer with the full weight/horsepower/torque of my particular application...I hope this helps if there are some lost souls out there that may be headed down the same long. hard. road. of a "full send" like myself! Please post if you have questions/comments/concerns; as I have "been there done that and forgot the t-shirt" with the L86/6L80E so far.
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