Dirtbiker

I bought the delco locking gas cap. I agree it is a simple cap with a plastic tab that locks it on that isn’t really that great. I can pull it off without unlocking it if I really wanted to. For me, I am more concerned about dust, water, snow getting into the shitty capless system than about the other stuff. There are holes all around the door and rubber that let all of that into the filler area. if someone opens the gas door and sees the locking cap they are more likely to go try another vehicle than deal with the hassle I hope. If you want to save the money the other options of paint can lids, etc will work to keep stuff out of the tank. To me this one just looks a little more robust even it it really isn’t. Hope this review helps others decide either way.

I put load lifter air bags in mine. I lifted the front 1 inch to gain a little clearance before I picked it up from the dealership. I didn’t realize the new trucks had a lot less rake than my 2016 did so 1 inch pretty much leveled it. I don't like squat so I put airbags in. 55psi lifts the truck back up with a load of fire wood in the box and the holiday trailer hooked up. I go the cheap route and just run the two air valves to where the license plate bolts go. It rides slightly rougher with the 5 PSI in the bags at all times but not really that much.

I have the opposite problem on my 2024 2500 AT4. I like 18 inch rims instead of 20’s so that the truck rides better with more sidewall. They told me they could not order the 18’s at the time and I had to get the 20’s option. I made a deal that when the truck came I would get 18 inch wheels and tires swapped. In the past the outside of the tire never changed with factory wheels only the rim size and sidewall did. So I got the truck and new rims and factory sized 18 inch tires. I have come to realize the 20 inch rims had 34 inch tires and the 18 inch factory tire size are only 33 inch. My speedometer is out 5%. So I have to do 105kph to actually be going 100kph. Not the worst thing but here is the catch - I am going to lose my warranty early. About 5000 km early. And that sucks. Two dealerships said even though it is factory size they can not adjust the speedometer. So I am searching for solutions. Yes I could just buy tires that are 34 inch OD but tires are expensive and with. 1mm offset the 33’s just barely do not rub anything. I hate rubbing. 34s will rub.

Has this been updated to include 2024 model years gmc 2500 does anyone know? i just bought one and had this done on my last truck and need it again due to work.

I have Rock Tamers from my previous truck. I did some measurements and used a 1.5 inch hole saw to cut three holes in each flap where the exhaust points at. They don’t heat up at all that I have noticed. i have seen some people also add a piece of mesh over the holes but I didn’t bother.

I told my local dealer the TSB number and then paid them $250 or so to reprogram the truck. I will say one other dealer said they would only do it for emergency vehicles though.

It has been a problem on all GM trucks for a long time. At least since 2003 when I bought my first new GM truck. Economics means they will never make better ones. Warranty to fix a few versus the cost to make millions of hoses better…… Every time it hits -35C here and I start my truck the cooler lines start sweating. Yet I keep buying more trucks ha ha. Necessary for my job. On my 2006 I got the dealer to give me the new warranty hoses and took them to a hydraulic shop to get them make into steel braided lines instead of rubber hoses. Then they installed them. Those ones never leaked again.

I have owned 8 gm trucks. 1990, 2003, 2006, 2008, 2010, 2014, 2016 and now a 2021. I live in Alberta Canada. Every winter as soon as it hits -35C the transmission cooler lines start to weap. Every single truck has had this happen and the new ones are never upgraded. I was told that the few that are covered by warranty are far cheaper than making the hoses on every truck better quality. And in warmer climates this doesn’t happen very often. On my third set for the 2006 ( I kept that truck for ten years) I had a hydraulic shop swap out the rubber part of the lines with steel braided line before installing them. That worked and they never leaked again. Yes I am a sucker for punishment ha ha. But every brand has their issues. They can actually “sweat” for a long time before they start to actually drip just so you know. I have never had one actually blow apart myself.

That is what I did. Drilled two holes in the skid plate above the valence and ziptied it up. Now it is just a tiny little dip right in the middle instead of the large one.

GM sells a locking gas cover for these trucks. It was about $50 in Canada. It is a little cheesy and could be pried off easily but it keeps the dirt out which is all I wanted. Also up here it was shown for 2019’s but not 2021’s. it does fit though.

You can also tie them straight forward and lift the back tires up while someone closes the tailgate. Set the bikes back down on top of the tailgate. Make sure to check them again to make sure they are secured. watch to make sure the front fenders don’t hit the back window though.

Thank you so much for sharing this! I had to pay $255.00 for this here in Canada but now my long distance remote start will keep the truck running up to 45 minutes. Why so long some may ask? Well is is below -30c here this week and 15 minutes doesn’t even get the motor warm let alone the interior. And the factory remote is good for about 200 feet. In hind sight for what I paid for the remote start I could have subscribed to onstar for about 5 years but I hate monthly payments. Will definitely think about it for the next one but for now I am very happy. Now to just find a way to disable stabilicrap……..

They do but that does not help. This is in front of the back tire. Actually right above that plastic. Also it is not a mudflap. It is a wind resister flap. Installed to direct wind around the back tire for better aerodynamics. this is the reason I always get running boards, also because I need them to get in ha ha.

No, i left them at the dealership and got the all weather ones i stead.

I got my AT 4 in February and I ordered those boards. They were backordered and took about three or four weeks to come in.

It is funny because I order a truck so I do not get a sunroof. Don’t want one. I don’t mind hitting a switch in the cab to turn lights on in the box. The less wiring to rot away and short out in a truck, the better. We never used to even have lights in the box. I also tried to order my AT4 without the fancy tailgate as i use my truck as a truck and can see that gimmick failing in some way one day. Contrary to most I don't want an IPad on my dash. I prefer good old reliable buttons that work in the winter. All the new computers that control the truck in a skid drive me nuts. if I could buy a brand new 1995 gm truck today I would. There is something to be said for simplicity. All those fancy features are also what has made what is basically the same truck I bought in 2014 cost $20,000.00 more this year. We all have our own preferences and the manufacturers have to find the balance. Just my opinion of course ha ha.

I bought the locking one myself just to keep dirt and water out. And if GM is now including a rubber cover, my guess is lots of issues with dirt getting in the tank. It has never made sense to me. How hard is it twist a gas cap on and off. And unlike the capless fill system on our Ford explorer that has a gasket sealed door and rubber insert, these trucks have gaps and holes to let dirt and water in. As always I am sure it works great in California......

Thanks for letting us know. And please update us. In the past when I pulled the ABS pump fuse the abs and stabilicrap light came on but not a check engine light. That is concerning. I did ask a guy at the dealership whenI picked up my truck and according to him you can’t pull a fuse anymore there are safeguards built in now.

The reason I said not the nerf bar style was because when driving on a lot of gravel roads, the rocks from the front tires will hit the back of the bars where they turn in under the truck and ricochet up into the bottom of the truck removing all the paint in that spot. Where as the flat ones don't allow that. I had a company truck with them once and there was no paint left right above the back part of the bar. About a 3 inch round area. I have never bought that style since. If you are not driving on any gravel then it wouldn’t matter. That is just not an option for me ha ha.

Might not be the answer you are looking for but this is one of the reasons I always have running boards on my truck. Some kind of flat ones not the nerf bar style or power ones. They protect the bottom of the truck better than a mudflap can. The other reason is that I am short and need them to get in ha ha.

In the past I always ordered a new truck in June so it would arrive in about September. It was basically a year old and the next model year was on its way about the same time so the rebates are the biggest at that time. But that was before all the issues that covid is causing so I don’t know if that would work this year. If you aren't picky you can also pick up a leftover truck for a smoking deal sometimes if it is one of the last ones left.

Same one I use ha ha

2021 AT4

2021. Fuel 18 x 9 plus 1offset Blitz wheels with factory Duratracs. 50 calibre style antenna. Wrapped the front GMC with carbon fibre look vinyl from Canadian Tire. Plasti dipped all the other emblems. Added a compustar T 13 remote start and dash cam. Expel on most of the front end. Dealer offered black powder coated exhaust tips installed for $200. Also had them swap out the special “carpet” floor mats which will get full of mud anyway and I don’t want snaps that will rust on the floor. Added a hard to find skinny low profile black tool box as well so I can still fit my bike in the back. And got rid of the red tow hooks ( I know some people like them but I don’t )

Thank you. I believe the stock tire size is 275 65 R18. No trimming. I don’t like cutting up my trucks so I stick with a smaller tire to make sure there is no rubbing.