tomthetrex

I have 35's on mine, I honestly dont notice a difference. My fuel economy went a bit down, but that was all....

I have the same Icon Kit with no issues. I have a factory trailboss block installed in the back. Have they retorqued everything to make sure nothing is loose?

Hey, sorry, just saw this message. Its the ADD stealth fighter bumper. I installed it myself. I think the shop quoted 800 bucks for install so I decided to do it myself. I have the Icon Stage 2 kit on the struck. I think it is set at roughly 2.25" with a trailboss block in the back. Thank you.

You have to pull the intercooler to get to the bolts. Its a pain in the ass. I had the same experience when switching out my bumper for an aftermarket bumper. The first part of the instructions was to remove the tow hooks. That should have been the last part hahaha. Took forever.....

I have the diesel, it is a great engine so far. We were looking at getting a tahoe for my wife, but I would only buy one if it had the 3.0l diesel (for the fuel economy). The dealerships need to get rid of these ridiculous mark ups on the tahoe. They are selling used ones in my area for 90k.

Sorry, just saw this. No rubbing. I did do a mud flap delete kit from Mcgaughys in the front. The bumper is ADD Offroad Stealthfighter bumper.

It depends on your wheel offset. I have 35x12.50r18 Toyo Open Country ATIIIs on my truck (actually measure 34.6") on a 2.5" lift (Icon Suspension) they do not rub. My wheel is similar in offset to the factory wheels though. When you start getting into a large negative offset, this can make it where there is more potential for rubbing.. I think you should be fine with the 3.5in lift though without issue....

If you have Instagram check out ltwmotorsports page, they have done several 1500 Silverado's with 17 inch rims with 37inch tires on probably a 3.5 to 4 inch lift. They have to do some modifications to the wheel liner and mudflap to make it fit. They may also be adjusting the crash rail. I have 35s on a 2.5inch lift and they fit without issue. I did a mudflap delete though. I still have about 1inch of clearance to the liner at full lock. It is all contingent on your backspacing for the wheel though. Anything is possible depending on how much you are willing to modify the truck. I have seen guys running 40s with a 3 inch King set up.

First thing I got was a tonneau cover, then tires and wheels.

2021 Z71 Duramax RST Fuel 18x9 Couplers Toyo Open Country ATIII 35x12.5r18 IVD Stage 2 w. Element Hard Parts UCA.

Recently got 35inch Toyo Open Country ATIIIs installed on the truck. No rubbing even off-road. Truck is the 3.0L Duramax RST package with a few upgrades.

Not the NorCal Mod, but this is the general method for fitting larger tires. https://store-59878.mybigcommerce.com/content/7238_3.pdf

Would you be able to measure from the center of your tire to the fender in the front? I have adjustable coilovers and I want to see if I am a similar height prior to ordering 35s.

Do you have a picture that shows the discrepancy? I took my bumper off this weekend to replace it with an aftermarket bumper. It is a pain in the ass to remove the factory bumper. There are a lot of hidden brackets in hard to reach areas. I dont recall seeing any slotted connections that would allow for much movement in the alignment of the bumper. At most maybe 1/4 of an inch?

How much clearance do you have on the firewall side when the wheel is all the way turned?

Gangly, have you seen any options around for one?

One more question, where did you find from Icon that the front wheel well should not be more than 40 inches? Wouldn't the size of your tire have an impact on this number as well as the amount of adjustment on the shock? If you had 35's you would be up higher than 33's, etc...

Keep us posted on here, I would like to know what 4WP has to say.

Yes it is.

The front is about the height that mine is sitting after the Icon kit. I do not have an AT4 or trailboss version, so unfortunately I am now squatting quite a bit in the back. I am going to put 2" rear blocks in the back to fix the squat. What is your truck doing when in AWD? From the install I have, all the CV and upper control arm angles look great, better than when I previously had a spacer kit. Is it not letting you go into AWD, or is it making some kind of noise? Im interested incase mine does the same. I have not tried this setting yet since the install. Thanks.

You might want to upgrade your UCA's. It is not recommended to do spacer lifts on a trailboss without upgrading the UCA's. There are quite a lot of ball joint failure pictures out there with spacer only set ups on a trailboss.

I have noticed that I get significantly more use of the DEF if I use the AC Delco version I buy from the dealership as opposed to the stuff you get at the store. I am unsure why.

I recently went from a 19 to a 21 and the camera has improved a lot.

Putco makes a pretty nice bed rack that I have seen on a few peoples trucks on this forum.

In my opinion the 10 speed is way better than the 8 speed. I had a 5.3 with the 8 speed and it was always cluncking from 1 to 2. i have the 10 speed now on the 3.0l diesel RST and it is so much smoother.