24v

No, it should be fine as you haven't drastically changed the airflow of the engine.

Actually closer to 3/4" and that is only 3/8" on each side of the wheel. You won't even notice the difference other than a more aggressive tread. I would definitely go at least 35x12.5 That is only 0.9" taller and 1.7" wider than the stock tires. It will be a slight change, but not enough to have issues. They won't stick out past the fenders because the stock wheels sit in quite a bit.

I didn't even try. I clearanced the wheel wells before I took it to the tire shop.

The lift is a zone 3" adventure lift.

It is funny how the truck makes the tires look small. ?

Running adapter/spacers is much more ridiculous than grinding 1/4" of metal off the corner of the arm above the ball joint on a not structural part. The point was that they may not fit with stock wheels so people that wanted to keep stock wheels should probably not purchase this kit as there is a chance they won't fit.

I don't want to run spacers so I just ordered new wheels instead. I'm not worried about clearancing the fender liners and bumper, I'll handle it. The point of this post was to warn others that may want to run this kit with stock wheels and tires.

Sorry, meant tires, not wheels. they contact the inner sidewall. I had the shop grind a little to create clearance. No way it would have worked otherwise. Now I need to buy wheels anyways because the bigger tires won't fit. Haha, always something.

I bought the Zone 3" Adventure Series lift for my 2020 2500HD Custom. Took it to a friends shop yesterday for install. The new upper control arms contact the factory tires. The Zone website says... "Stock wheels with stock tires can be installed, however clearance are very tight to the upper control arms."

Do you have a link, or a part number for this kit?

I don't know anything about your supercharger kit, but I would assume it uses an air to water intercooler setup? If so, have you verified it is full of fluid, and that it's radiator is clean and clear of debris? Is the electric water pump for that system working?

Yeah, most tires are not exact per the math. Always best to check their site for tire specs. Truck looks good. I am also running that same size, but on stock wheels and in the Ridge Grapplers. Mine gets super close to the fender liners, but no rub.

295/60/20 Trail Grapplers are 34.45" tall when mounted on an 8.5" wide wheel according to Nitto.

I have 295/60/20 with a 2" level. I have not gone rock crawling or anything like that, but I am in the dirt on jobsites at least a few times a week. Sometimes on nicer dirt roads, and other times over piles of dirt, slopes, etc. The only rubbing I can find is just on the sway bar at full lock. Pretty much every GM that I have had with larger tires has rubbed there and it has never been an issue. The tires come really close to the liners but there is no evidence of rubbing there yet.

The pin numbers are on that same diagram.