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Said farewell to mine. It was bitter sweet. For a 2021 Silverado LT. Will start tearing it apart soon [emoji51] Sent from my iPhone using Tapatalk

I wish there was a way to pin some messages on this thread. Here are a few that every new reader needs to read: 1. Yes, if you have a rear slider your window WILL leak. Period. (you may last longer if you live in a desert) 2. Yes, your window will eventually leak again if the dealer "seals it". 3. No, your replacement window is not some new, unicorn design that will finally solve this. I realize I'm taking some liberty with the finality of statements #2 & #3, but those claims hold up pretty well on this 180+ page thread.

Sorry, I had too! ?

Now I understand

Posted in another thread, but installed the Eibach lift front and rear.

When I go surfing and snowboarding I hate taking my key. I've lost one on a powder day and had to get my in-laws to bring the spare up to the mountain. Plus camping or running out to the truck you don't have to remember the fob every time. They also cost allot when you lose one. My buddies with Ford's have these keypads and they get to leave theirs in the truck.

None taken GBear!, After reading your last missive, I guess my next mod, which was an extra engine oil cooler coming off the other end of the bracket is a no-go. Here in Abilene, TX the summers get into the 110-115 degree a lot. So I was gonna cool the engine even more. Guess I'll put that oil cooler on the Trany..... Anyway, Y'all stay safe, trouble is on the horizon if U been keeping up with the pols lately. PQTUS will straighten them out. Purolator Pure One PL22500 or AMSOIL filter EaO34, decisions decisions..... ") I'll post pictures after the Mod, maybe a couple of days, Friday supposed to get up to 60 during the day. I'm out jd

Yup, I just followed the TSB linked above. There was another pdf on how to drop the headliner I'll post it here. Headliner.pdf Bought a tube of my own Kent Sealant. I took the whole headliner down. Left the spoiler on at first and water tested with a hose. I had a leak from one of the spoiler holes. Bad gasket from one of the retainers. My leak was different after I took it in to GM. My first leak was down the corners like everyone here. After the fix, the leak was coming from inside the headliner because I would go through a car wash and it would be fine. Then the first hard stop in traffic, my headliner corner would be soaked. Water was pooling on the top side of the headliner. I suspect the tech wasn't careful and mutilated the gasket accidentally. I ordered a new retainer from GM. It comes with the gasket. But I still had a slight trickle of water on the driver side. There was some sealant missing or fairly thin near and above the slider itself. But the left and right corners had plenty of sealant. So I just filled in the middle top section with more sealant until it was level to the top of the glass. And that fixed the leak. I realized that even though the leak was dripping on the inside driver side rear. The source of the water was travelling from the center top of the sliding window. I suspect the adhesive they (Fuyao) used to glue the glass to the plastic frame is either poor quality or not done right. Be happy to help anyone wanting to do this themselves.

Got a little mud on the tires. New tires are great in the snow Sent from my iPhone using Tapatalk Pro

Final update that may help some and infuriate us all: Local glass guys got together, some of these guys have been doing this for 30+ years, and studied the aftermarket window from ATI. They actually got two of them in. They said it is not a solution and there were a number of reasons why. Advised me to avoid that route. Some of their techs have been doing these repairs for GM dealers and have relationships with upper management at GM. The word from GM is that they are very aware of this, but they have no intention of making a permanent fix at this point. Its TSB sealant, then replace glass, then sealant, etc. Until the owner is out of their 36K bumper to bumper, then they are holding the owner responsible. This may change, hope it does, because it is not a good look for GM. This glass company said they were shocked at GM's position and they will not buy any GM product for their fleet simply due to GM's handling of this issue. They also work on other brands and other brands are having similar issues, but they are being addressed properly (Tundra, Ford, Ram). Basically, if you aren't already aware, GM does not care about their consumers. Lastly, their best tech that has done dozens of these repairs, advised the most successful repair is to replace the glass and at the same time to perform the TSB sealant. It adds some structure and stability, but is still only a temporary fix but should last longer. Their next advice, once you are out of warranty, is to simply install fixed glass or trade/sell.

I'm surprised there isn't a class action yet.

#4. GM is a bunch of friggin' idiots for letting this go on for over 3 model years with no end in sight.

In response to your PM: I expect you don't know this. Mobil gets 20,000 miles out of that filter series by letting dogs and cats through. Somewhere on the box in fine print, get out your magnifier, that 99.9% efficiency is referenced to 30 micron. The ISO 4548-12 standard is 20 micron. The GM wear test standard is a Beta Ratio of 75 or 98.7% but the reason is to find the smallest size that can be filtered with the efficiency or Beta Ratio as the reference. Then it's apples to apples. So how does the Mobil 1 do at a Beta of 75? 25 micron. In this forum go to and read Motor Oil / Filtration / 4 for the quick information then the other filtration post, #3 is an eyeopener for the nuts and bolts. I spent some hours on your current question last night to hand you the best possible solution but it's you truck. I'm just offering INFORMATION....which is different from opinion...isn't it?

New Truck??? Now you got people looking at New Truck's .

Just got my AMP Research Power Steps installed the other day. Also mounted my AVS Aeroskin Light Shield but haven't wired it up just yet (I'm NOT good with electrical, so still researching how to do it properly). Really love the look of these steps over the stock nerf steps!

-Toolbox is a UWS - Tires have held up remarkable well considering how much highway driving I do. No complaints so far. - 4" lift -35x12.50s clearing with no rub (wouldn't attempt spacers though) Thanks for the remarks! Can't say I don't enjoy looking at it while I am walking to it lol .

Not much has changed over the last few months, due to saving for a house and wedding next year. Snagged a cool pic from deer hunting a few months ago. Loving these Wildpeak 33's!

Only 56 pages? Rookies.?

I'm picking up a Denali with the 3.0 this weekend. An opportunity came up to get a much nicer truck than I thought I'd ever have for a great price (leasing for now). I hope to have it for many years and using less fuel per month will help pay for it. There will be a small amount of towing, mostly driving to jobsites to drop off material. If you like speed, get the 6.2, otherwise the diesel is calling your name.

I think I am going to just get LED bulbs I like the look of my OEM custom sport package better

Had my tow mirrors installed by the dealer as part of the sale deal. Also had them install the drivers door keypad lock accessory. I'm still getting used to the mirrors but over all I really like them, especially the cargo lights which I use when backing up at night. Now I can see my passenger rear corner better. Sent from my iPhone using Tapatalk

Three model years and this problem goes unresolved. And GM isn’t even attempting to solve the problem with an engineering fix at the factory. I think SPASierra may be onto something, this has all the makings of a class action suit if enough complainants get involved. I’ve read it only takes 40 people to start a suit. https://www.classaction.org/learn/how-to-start

By the way, you'll want to torn of the courtesy light function. It turns on the mirror cargo lights which sit at near eye level. Blinded me the first time I got out. I'm not sure I'll wire the mirror cargo lights to reverse. I'm able to turn on cargo lamps manually when in reverse so I can choose when you get the extra light or not. For now I like that function but I am using them every night when I back in my driveway. It had helped a lot being able to see the passenger rear corner and avoid hitting the trash cans. I'm still getting used to the size and turning radius of the truck. Something interesting is I'm having to retrain myself some where the mirrors are when driving. The detail convex mirrors are on the bottom about where the stock small mirrors used to sit. You have to look up a lot higher for the main mirror on these. I also see cars in the passenger mirror sometimes and think they're right on me because they glass is so much bigger. I'll get used to it quick but these were noticeable changes. Sent from my iPhone using Tapatalk

Here are the pics. Finally stopped raining long enough. Sent from my iPhone using Tapatalk

Remember GM came very close to offering a 4.5L Duramax about 10 years ago, but found that it wasn't any cheaper to manufacture than the 6.6L and didn't get any better fuel economy. It just made less power!

I'd just get whichever of the two is cheaper! with diodes there are 2 different voltages that are important when picking one out, the forward voltage is a voltage drop across the diode. you don't get that "one way valve" for free, you lose some voltage, usually 0.6-0.7V, no where near enough to cause a problem here, the voltage will still be plenty high to activate the relay. the other concern is the reverse voltage (this is probably the spec that you are looking at), a diode is a device which prevents the flow of current in one direction should there be a reverse biased voltage that it has to "hold back," how much voltage can it handle before possibly failing? This is a 12V circuit, even with the alternator in operation you're looking at 14-15V at most, so either of those should be just fine for the application.

Thanks man. I started using this one in the early 2000s when I was fixing boats. I was fascinated by the race boats so I came up with this screen name. Sent from my iPhone using Tapatalk

Someone mentioned a few pages back about a new style window frame, but time has not proven it to be a solution. Rumor has it that GM has now deemed the T1 platform leakage problem to indeed be in the "rocket science" category and have requested help from NASA and JPL.

Nice! Over the past year I've refinanced mine and when I went to my credit union they said that they valued the truck at 30 whereas my loan was a few thousand beneath that. Colorado has quite a strange window for used trucks normally, but with 2020 winding down it has gotten even more random. You've done a lot of great work for the K2 platform, and we all thank you. I for one will be lurking around on the T1 forums to see what kind of magic you can bring to that generation of trucks as well. Thanks man [emoji106] Sent from my SM-G986U1 using Tapatalk

CURRENTLY SHOPPING: 2021 CHEVROLET SILVERADO 2500 HD Crew Cab Pickup : LTZ : 4WD : 6.6L V8 DIESEL Change Vehicle Grille in Black with Chevrolet Script (For Vehicles Without HD Surround Vision Camera) Part No. : 84468400 Part Only Price $425.00* Installed Price $505.00* Designed and engineered to enhance your vehicle’s exterior Helps give your vehicle a distinctive appearance Manufactured from high quality materialsthat are tested and backed by Chevrolet Package includes grille insert and installation materials Painted finish provides a customized look Includes Bowtie logo Available Delivery Methods Add to Cart It says it has a painted finish, so I'm gonna assume it's painted black.

Got $29k for it. Caravana offered $23k (they deducted for “market value”. Vroom offered $24k for it. I have a good friend that works for Toyota and usually buys at market value or better. He offered $26k for it. Other dealerships offered $25k - $26.5. Negotiated up to $29 after initial offer of $26. KBB’s trade value was at $29k - $33k with a media of $31k. But I know KBB is always inflated just to get you in the lot On the new truck, it had $4500 in rebates, plus employee pricing. No dealer add ons except for window tint. So it was almost $10k off MSRP. I always stalk my vin after trade to see what the list for. Usually $3k-$4k above what they bought it for but I understand they have to make $ too. Sent from my iPhone using Tapatalk kit

I can easily hold 70 mph up the passes towing my 20K fiver. And the shifts are smooth as butter. And I am happy with the fuel milage. And I feel pretty comfortable that the whole package is balanced such that all that power isn't tearing the rest of the truck up. Chalk me up as completely satisfied with the power train and gearing.

Curious what you got for it, what you got your new truck for and what dealership to see what they try to flip it for. Probably a steep markup im sure, but I've always done that with my old vehicles. Just to see how the dealership handles the trade in profit wise. Side queation, did you remove any mods or turn it in as is? Sent from my SM-G986U1 using Tapatalk

Teaser Sent from my SM-G988U using Tapatalk

Any reason why you'd want to go faster than 99? Just because your tires can?

It's under warranty, sounds like the dealer's problem to solve

fluid film was one of the top performers. it didn't hold up well against the pressure washer as the only issue, every other test it did amazing.

I did. I ordered yesterday. But now I’m trying to convince the better half to trade in my truck on a new ‘21 Denali. Lol. Sent from my iPhone using Tapatalk

Good thing they don't use aluminum in aircraft...

Well, they're all junk - am I supposed to be happy about spending $50-$85-LARGE and having nothing but problems?? I guess you didn't grow up in the same era I did, back when cars were actually built to LAST ... and cost 1/3rd what they do now.

Thanks for all the ideas guys! I ended up using this from Amazon Nilight 2PCS 60 Inch 180 LEDs Bed Strip Kit with Waterproof on/Off Switch Blade Fuse 2-Way Splitter Extension Cable for Cargo, Pickup Truck, SUV, RV, Boat ,2 Years Warranty https://www.amazon.com/dp/B07KXR799K/ref=cm_sw_r_cp_api_glc_fabc_dlC_xYS1FbPKWGHQ4?_encoding=UTF8&psc=1 Here a is it at night Sent from my iPhone using Tapatalk

Lol No rust to a tech is being able to hit the 13 mm exhaust clamp nut and having it back off no issues whatsoever [emoji23]

Ran across this gem a little bit ago Sent from my iPhone using Tapatalk Pro

I think the current power level is fine, how about instead offering some actual towing gears? They have the same rear axle as the Ram trucks, which offer 3.73 or 4.10, yet your only option is 3.42

Thin gage like 16 or 18? Cool. That's it, huh? I will try it this weekend. I would like the reverse and cargo lights to all come on whether in reverse or by the switch. Mark

Thanks!.. I dont know why but it only lets me upload one photo at a time, 4MB max lol

Mc New - It’s the front emblem modified. what details would you like to know? early morning shot below

Somewhat new to the forum and excited about my new 2020 AT4 Duramax. So far loving the new truck. This is my first GM product after owning Toyotas my entire life. Couldn't be happier and hoping its as dependable as a Toyota. Mods - 285/75/17 Nitto Trail Grapplers 17x9 Icon Rebels w/ 0 offset Removed Rear 2" block to level truck Next Mods - Gloss Black Paint - Grill - Emblems - Fog Surrounds Powder Coat TailPipes Gloss Black

I will never understand guys who will buy 3 and 4 models of the same truck that they have had bad luck with. You'd think after the 2nd one, they would learn their lesson. I guess some people are just gluttons for punishment. ??

What two hoses for a crew cab?