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Found 934 results

  1. 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.
  2. 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.
  3. I have finally got around to finalizing the install of the OEM RSE system for my 2016 Silverado HD. This was the only option that I wanted that my pickup did not come with so I am extremely happy this is done and so is my son! I would like to give a BIG THANKS to Anthony and John at MVI (www.gm-navigation.com) as they are extremely knowledgeable and their customer service is top notch. I purchased MVI's in-dash Blu-ray and RSE kits along with the unlocked HMI module and added their HDMI input and third brake lamp camera with switch. The unlocked HMI is definitely worth the money over a Lockpick as you have full control while in motion and don’t have to worry about the Lockpick failing as I had 2 of 2 fail in my old 2010 Silverado. MVI supplied most of the parts though I did source a few parts from the dealer as I did vary a little from MVI's kit as I wanted the RSE controls in the center console which their current kit does not yet have but was told it is on their to-do list with many other projects. Their HDMI kit requires the RSE controls as you tap into those inputs. I removed one of the cigar lighter outlets in the front of the center console and mounted the HDMI input there. If you stick to their kit, the install is fairly simple IF you have a sunroof. Once again, MVI offers great customer service in case you do run into any glitches. They are also a vendor on here as well if you did not know. NOTE: ***NON-SUNROOF VEHICLES*** You do need a new headliner if you don't have a sunroof as you need the mounting bracket for the screen which offsets the screen from of the original position of the overhead dome lamp leaving ts existing hole exposed. On sunroof vehicles, the dome lamp and screen use the sunroof frame to mount to and you just enlarge the existing dome lamp hole.
  4. I have a 2005 Sierra 1500 with a blown gt5/g80 and a 2004 Silverado 1500 parts truck with a gt4. Just wondering if everything would be the same if I were to swap them or not
  5. 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?
  6. Got my SLT ceramic coated. The product is called QP-ON. Turned out pretty good! Debating getting 3m wrap on the front end. So expensive!
  7. John Goreham Contributing Writer, GM-Trucks.com 4-2-2019 General Motors released its Q1 U.S. sales figures today and the sales report is optimistically titled, "The First of GM’s All-New Pickups Posts a 20 Percent Q1 Gain." Yet, Silverado sales were down by 16% to 114,313 units. Sierra was down by 2.2.% to 40,546. We looked back two years to 2017 and found that the Silverado was down compared to 2017 as well (128,456 units in Q1 2017). Sierra's sales were 49,810 in Q1 of 2017. So, in a nutshell, GM's trucks were down for the second consecutive year in Q1. Yet, GM found a headline that says "up 20%." How? Deeper in the GM sales report the company says, "Combined sales of the 2019 Chevrolet Silverado 1500 and GMC Sierra 1500 crew cabs — the first of the company’s all-new full-size pickups to launch — were up 20 percent year over year." So, there is the answer. If that makes any sense. GM seems to clarify the situation by saying, "Availability of all-new regular-cab and double-cab pickups was very limited during the quarter due to launch timing, but full production of all cab styles started in March and they currently are arriving in dealer showrooms." Overall, GM's sales were down 7%. GM attributes this to a very strong Q1 2018. GM sees a rebound for the full year. “After a slow start to the year, the retail SAAR has risen each month since January,” said Elaine Buckberg, GM chief economist. “Consumer sentiment continued to recover in March and the other key drivers of auto sales like employment, wage growth and household balance sheets are healthy. The Fed paused in raising interest rates, which eases a headwind facing auto sales. Overall, the U.S. economy is in solid shape, which bodes well for the industry outlook.” The Canyon was down for the quarter, but the Colorado was up 16% with 34,494 units sold. Compare that to the segment-leading Tacoma which sold 22,798 units just in March. Image courtesy of Zane Merva.
  8. John Goreham Contributing Writer, GM-Trucks.com 4-11-2019 GMC's new Sierra CarbonPro Editions arrive at dealers this summer, available on the Sierra Denali 1500 and the Sierra AT4 1500. GMC says that the first will arrive in June. Unlike a composite bedliner, GMC's purpose-built CarbonPro bed is the first of its kind for carbon fiber composite. GMC promises best-in-class dent, scratch and corrosion resistance. To help prove that statement, GMC has released a little bit of data on its testing. More importantly, images and video. Tim Herrick, executive chief engineer, Full-Size Trucks, General Motors explained why truck buyers will want CrbonPro, saying, “The bed is the working end of a truck; it’s what brings buyers to the segment. Loaded with motorcycles, snowmobiles or dirt bikes, CarbonPro in the 2019 GMC Sierra is sure to impress with its strength, space and innovation.” Duncan Aldred, vice president, Global GMC, added, “CarbonPro is made of the same raw material found in seven-figure supercars and even aerospace applications. Coupled with offering the world’s first six-function MultiPro tailgate, the 2019 Sierra packs a one-two hauling punch for whatever the situation demands.” The GMC CarbonPro bed has best-in-class cargo volume partly because its sidewalls can be pushed out farther. This is due to the outstanding formability of the carbon fiber composite GMC chose that allows molding deep and complex shapes with variable wall thicknesses. The CarbonPro bed is large enough to slide a 2-inch by 6-inch wooden divider into pockets in the bed wall for cargo organization and separation. GMC also points out that it is possible to vary the graining of the material. Some areas are deeply grained or traction and some are less grained so that cargo can slide in and out better. The GMC CarbonPro bed has many design features, including: - Spray-in bedliner not needed: Because carbon fiber composite is exceptionally durable, a spray-in bedliner is not necessary to help prevent damage and therefore will not be packaged on models with the CarbonPro bed. The composite material is rugged yet nonabrasive. - Rear wheelhouse liners not needed: Because of CarbonPro’s increased dent resistance versus aluminum or steel, no wheelhouse liner is installed from the factory. - Payload increase: Models equipped with the CarbonPro bed offer an increase in payload over a steel bed due to the mass savings of carbon fiber composite. Payload for these models is at least 59 pounds higher, depending on the configurations and equipment. GMC laid out the type of testing that it conducts. Included are: -Drop tests: Large and heavy loads were repeatedly dropped on the CarbonPro bed to replicate extreme use scenarios. Testing included dropping cinder blocks, 1800-pound loads of gravel and 450-pound water-filled steel drums from varying heights. -Corrosion test: CarbonPro was subjected to corrosion testing but carbon fiber composite is naturally resistant to corrosion. -Snowmobile test: A snowmobile with metal studs on the track was driven into the bed and accelerated at full throttle with a 250-pound rider on board with only minimal scratching evident on the bed. -Extreme temperature testing: Validation work was performed in Yuma, Arizona, and Kapuskasing, Ontario, to help ensure CarbonPro holds up in unforgiving environments. -Generator test: High heat exposure involved aiming the exhaust from a portable generator directly at the corner of the bed to ensure heat and vibration would not degrade the bed. Who is interested in this new cargo bed? What do you like about it?
  9. First post but following for a while now, I was wondering if anyone on her has done, or has seen a set of aftermarket Silverado headlights in a Sierra? I have a 2012 Sierra and I like the look of some of the Silverado headlights a lot better than the ones I have now, just want to change it up a bit and was wondering if anyone new if they we able to just be bolted in normally or if there was a conversion to make it possible?
  10. From the album 2019 Sierra AT4 6.2

  11. Ok so long story short I found a big oil puddle in my driveway after parking my 14 Sierra with the 5.3. The dealer I took it to said the rear main seal blew and the cause was the combination of cold temperatures and the oil catch can that I put on the vehicle. I installed the elite engineering e2 can with one way check valve. Has anyone else had this issue? They're telling me since I put that system on it voids the warranty and I have to pay for the rear main needless to say I'm pretty pissed
  12. Zane Merva Executive Editor / Publisher, GM-Trucks.com April 12th, 2019 A few months ago we started to notice something on our 2019 Silverado that no owner of a brand new vehicle wants to see. Rust. Specifically on our rear bumper, just around the plastic step. It wasn't huge and didn't spread very far from the edge... but we couldn't stop noticing it. There was no excuse for rust on a 8 month old vehicle with less than 10,000 miles. The photo above shows the minimal but noticeable rust patch. It was even happening on both sides and in the same place. The issue seemed odd. Unfortunately, we've just been too busy to bring it by to our local dealership for them to look at. Lucky for us, our procrastination has paid off, because in the time between us first noticing the problem and getting off our lazy asses to drive to our dealer, GM has released a TSB about this very issue. It appears that on most of the early trucks, production of the bumper was completed incorrectly. The steel assemblies should be bent into shape then chrome plated. But that didn't happen in a small part of the early bumpers. The supplier bent the area around the side step after the bumper was chromed. The new folds in the steel damaged the chrome, cracking it and making the truck susceptible to rusting. What's the fix? If your bumper is rusting already, Chevy and GMC will replace it. If it has not yet started to rust, they will apply an automotive grade wax/sealant to prevent rust in the future. If you're unsure if your 2019 has this issue we suggest doing the following: 1. Give your truck a bath for heavens sake! 2. Clean the rear bumper step area with a hose or pressure washer. Front and back! We find lots of dirt collects behind our step in the bumper assembly. 3. Inspect around the foot step area and behind the foot step area. We found rust in both areas! 4. If in doubt, wait for it to rust and kindly ask for a new rear bumper. Our dealership, Banks Chevrolet in Concord, NH has been great getting our rust issue fixed. Our service adviser Justin has kept us in the loop during the repair and gave us a loaner Silverado LT while they have our truck. He even made sure any other outstanding service updates are also applied to our LTZ while it was in the shop. As it turned out, there were six open issues that needed addressed. Here's the official Service Update you can print out and bring to your dealer when you take your Silverado or Sierra in for service.
  13. Sold my 2015 Silverado a few weeks ago and bought a new GMC Sierra SLT with the z71 package and the 6.2L v8! Had the camper shell moved over and sold the Silverado to my dad. It's been a great change so far. Nicer interior so my wife and daughter enjoy it. It's much quieter with the active noise cancellation, and the thing just SCOOTS! My 5.3 that i had before was modded and would move pretty quick but this 6.2 just puts it TO SHAME. Installed an AFE Momentum GT Intake on it a few days ago and it's even better. Just cracked 1000 miles over the weekend and it's already better on gas mileage, ride quality and everything in between than the silverado was. Very excited for the modifications to come. Looking to add some fox coilovers to all 4 corners in the next week or so, which will level it out and lift the front end. Will then upgrade to 10 ply tires, probably a good bit taller than stock. (thinking about cooper at3 XLT's currently in probably 275/65R20 or 285/60R20) Then planning to put airbags on the back for towing. Still undecided on exhaust setup, but will plan to do that and probably tune it in the future as well. Anyways, heres a pic of the truck when i picked it up. i'll post some pics of the intake after installation as well.
  14. Hi, My dad is looking to upgrade his 2011 Avalanche to something bigger, he wants a 2015-17 Sierra 2500 with a Duramax. Can we get this in a quad cab or single cab configuration? Can't seem to find it on build & price for 2018 models on the GMC website. Crew cab won't fit in the garage.
  15. GMT-K2xx 2014-2018 Brand new in the box GM/Borla 6.2 exhaust. Part number on box shows dual side exhaust but laying it out it's a dual out the back exhaust, not what I wanted so its for sale. Part numbers on box are: 19303345 (dual out the side) and 19303348 ( dual 4" black tips). Parts have never been installed just laid out before install. Pictures are of actual parts. $950 takes it. Pm with contact info and I'll be quick to reply. Thanks Roy PREFER LOCAL SALE, DO NOT WANT TO SHIP...... Houston, Tx
  16. Good Afternoon fellow 6.2L enthusiasts. I apologize if this sounds like a commercial or a rant. I just like to share what I've experienced and discovered. So, I don't know about you, but I've been searching for a way to cram more air into my L86 that won't break the bank. I've done hours upon hours looking for the perfect bolt on's or practices that will help the block breath deeper. I've learned that swapping intake manifolds are not worth it however, porting makes it one bad ass manifold. (which i've done) I threw on an AFE CAI and that really helped get the air moving. (momentum GT pro 5R) Headers and a bigger full exhaust helps get the flow rolling. (I'm rocking TSP 1 7/8 Headers with a 3.5" full exhaust (catted with Cal Cats) and a Flowmaster Pro series Muffler) Cylinder Heads and a Cam shaft will transform your truck. (going with TSP Heads and a Trick Performance Cam package) And a basic tune wakes these bad boys up. (local dyno-tuner) That being said after the above you're looking anywhere between 430-530 HP N/A. Obviously the Cam specs are going to swing that number. Now, The one thing that I have NOT been able to find is a Larger Throttle body that will fit the L86 Stock Manifold. So I did what most have done and ported that sucker out. The only issue is it will never be larger than 87mm. Until this came along. https://www.bbkperformance.com/92mm-throttle-body-14-18-corvette-camaro-lt1.html FYI slight modification is required to the stock Manifold. You need to shave the base of the Vacuum port as well as the MAP sensor base for the frame to fit. Once that is done you're rocking. I was able to Port match the TB Bore to the manifold inlet and smooth out the transition. Honestly I can immediately feel the difference. When I get a little bandwidth I will throw on some videos of Cold/warm starts, take offs etc. If you have any questions feel free to reach out!
  17. Well today while driving down the highway without warning my drivers side window decided to explode for no apparent reason. There was no traffic passing me or passing by in the oncoming lane. The only other vehicle was another car behind me about 75ft or so. Anyone else had this happen please share.
  18. My passenger side window on my 2014 GMC Sierra get stuck on I try to put it up. It goes up a little bit and then stops and gets stuck and then goes up a bit more and stops. I took the door apart and I can't see where the problem is. It moves so I don't think its the motor or regulator but I'm not sure. Anyone got any ideas?
  19. image3a.jpeg

    My AT4 that I picked up a couple days ago.
  20. Looking to buy a set of take offs summit white door handles (4) and mirror caps. I’d like to stick with OEM parts but if anyone knows of aftermarket I could be persuaded if the OEM route doesn’t work. Thanks in advance!
  21. Is anyone else having an issue where the automatic start-stop feature on the vehicle stopped working? I just got the truck about 3 weeks ago (Brand New) and this is the only feature giving me an issue. It worked at first, but after driving it a week, it has not worked since. The only modification I have done on the truck is change out the License Plate light bulbs from halogen to LED. I'm at the dealership right now and they can't figure it out, so they are trying to contact GM regarding this issue. No error codes showing up according to them.
  22. Sierra DeMod Sell

    So finally have everything off of my truck and pics of everything. Prices are obo plus shipping. If post not allowed please let me know and I will delete. Thanks. - RX Speedworks catch can with check valve and clean side separator. Has the OEM connectors for the PCV connections $200.00 - UPR Catch Can with check valve and OEM connections. Only had for about three weeks. $200.00 - Superchips F5 GM Flashpaq handheld tuner. Primarily used to turn off AFM and adjust for tire size. Has pre-loaded tunes and able to change parameters such as gear, AFM, speed limiter, etc. Comes with original box and manual $300.00 - 2014 and up OEM crew cab undersea storage. Prefer not to ship this item but will at buyers expense. But will meet if you are near Augusta, GA-Atlanta, GA-Columbia, SC $140 - Volant CAI intake 5.3L. I removed the filter it came with and upgraded to a RotoFab dry filter. Comes complete with everything you see and OEM connectors. Would make deal with someone if they wanted this and the RX Speedworks catch can as the clean side separator would work with it. $300.00 - Doug Thorley Tri-Y headers. Will work with 5.3L and the 6.2L ecotec3 engine. However if you have the 6.2L the connection at the fatback needs to be modified. $600.00 - GM OEM Rosen DVD Headrest AV-7950H 8K-GMCHEV-B38-S1. The primary headrest is the DVD unit while the secondary headunit has the USB input and iPOD docking station. Has built in video games and will come with four headphones(two brand new never used), two video game controllers (new just tested), the accessory wires if you wanted to add a video game system or something along those lines. Im at $650 on these will not separate. Selling the whole kit. Thank you for your interest.
  23. Is anyone aware of what is required to install factory fog lights into a 2016 & up Base level Sierra 1500 that didn't have them from factory? Will any scrap of wiring be present? The switch is not there... but can one order a switch, the lights and slap it in? Can the BCM be flashed by a dealership if required? I bought an el cheapo that doesn't have fog lights and the blank inserts drive me bonkers already... so I WILL be filling them in with factory fog lights... it would just be nice to know if I can have them work like factory or not. Otherwise I'll wire them up like jobbers and have a jobber switch. Thanks
  24. Alright everyone... now that we've seen what the all new Sierra will look like, I think it's time for a good ol fashion'd vote down. Which truck do you like best? Which one would you buy? Which design do you like better? There can be only one! Place your vote now. VERSUS and of course, this is all just for good fun.
  25. Hello, I was driving my 2000 GMC Sierra 5.3L when it died on me in the middle of the road. I tried to start it, but the engine cranks but didn't run. After I left it for 30 minutes, I started it again and when it started the engine revs all the way to redline without me touching the gas paddle. It keeps doing that every time I start the car, and there is no way to stop it. This is the things I have done since the problem started: I checked and cleaned the throttle body, and it is not stuck wide open. I checked and cleaned the IAC valve. I checked the Accelerator Cable, and it looks fine. I looked for vacuum leaks, and I couldn't find any. Here is a video of the issue: https://youtu.be/d7ILg5Tv9dg Another video( here when the revs reached 3500 it dropped to 2000 then the car died and never didn't again(until I left it for 30minutes) ): https://youtu.be/gR-O2QJaDQY
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