Oversized Tires On Stock 2017 GM Wheels Pics

Ret Grunt · January 12, 2018

I have a 17 Black CC Z71 6.2 with Standard Bed with 20x9 rims. Wife says it's perfect, my wallet says " a few mods won't hurt! I've been thinking of swapping out the Rancho's for Bilstein 5100s all around, but unlike most, I only want the fronts set on the 2nd notch. especially after reading in the level/lift section (of 383) how a few with 20's rubbed after a level. I want a larger tire with a slightly more aggressive look but I gotta be able to keep my rims,.and not hear the tires as i drive down the road plus i like the Black with Red stripe look as well as the letters on the body. I know based on the tire that my mileage will drop, but until Premium goes up to $5 a gallon, I Don't Care! I'll gladly take suggestions from those that have kept the Oem rims and not lifted, especially those that DON'T/NEVER rubbed after swapping tires.

makosenna · August 24, 2018

Falken Wildpeak A/T3W 275/60 R20 . Very happy so far

makosenna · August 24, 2018

Looking at 5100's at this time. May go up 1" . Had truck one year now and still very happy as a driver.

Not so good in the towing department even with my small 20' open trailer with tool box on front. Would never try to pull my 30' 10K boat with this.

Always get out F350 DRW for towing.

MPG's didn't change much if any with Falken Wildpeak A/T3W 275/60 R20 added.

Just turn 20K this week.

Edited August 24, 2018 by makosenna

danb303 · August 24, 2018

On 1/4/2018 at 10:09 PM, makosenna said:

Just put Falken Wildpeak A/T3W 275/60 R20 on my Black ops DC 4x4. No lift 100% stock with no rubbing and great ride.

Now it looks like a 4x4 with the street tires removed!

Did you see a change in MPG?

makosenna · August 26, 2018

Dan, read above post.

THX

edz71 · August 26, 2018

I have a 2016 Z71 5.3 with 285/60/20 Toyo AT2 with 2.5 level front only, slight rub at full lock. Lost about 2 MPG added a Diablo 87 octane tune and gained back about 1 MPG.

makosenna · August 27, 2018

Ed, your truck looks good. I went with the peaks P rated tire as there lite and has the looks of A/T.

Morenar · November 26, 2018

On 8/23/2018 at 10:47 PM, makosenna said:

Falken Wildpeak A/T3W 275/60 R20 . Very happy so far

I am looking to go with the same size Nitto Ridge Grappler tire on the same 5 spoke rim. Did you have any rubbing on the UCA or any where else? Also is your truck 2in leveled?

edz71 · November 26, 2018

Thank you!, yes the Toyo's are heavy tires, but, they have done well in wet conditions which is what I was looking for, the SRA's where pretty scary on wet roads. Wildpeaks are great tires as well you should be happy with those.

L86 All Terrain · November 26, 2018

15 hours ago, Morenar said:

I am looking to go with the same size Nitto Ridge Grappler tire on the same 5 spoke rim. Did you have any rubbing on the UCA or any where else? Also is your truck 2in leveled?

You wont have an issue, my friend runs a 305/55R20 on the same wheel, 2" level, minor rub. you wont have rub with a 275, that is the stock tire width. Width is the problem with rubbing with stock wheels, not the height until you get around 34" tall.

Morenar · November 29, 2018

Just had the Ridge Grappler 275/60/20XL mounted this morning. No rubbing that I can see so far. makosenna What tire pressure are running on yours?

Instructor31 · November 30, 2018

Toyo Open Country R-T Tires LT285/60R20 on RC 3.5 knuckle lift.

had to do minor trimming on the back of the fender lining on the front.

Havvkeye · November 30, 2018

On 10/2/2017 at 7:31 AM, tnchevy said:

Larger and more aggressive tires will effect your mpg's a lot more than leveling out the truck!!! Most guys that put bigger tires usually don't put street tires on but AT tires and most of them are LT tires so you will end up with a tire that nearly twice as heavy as your OEM's and a more aggressive tread pattern. You will loose 2-3 mpg no matter what others will try to tell you. If you going to take that kind of hit you might as well level out the truck or at least take the air dam off.

I lost around 4mpg with my front 2" level and bigger (heavier) tires.

TXTiggr47 · December 10, 2018

305/55R20 Toyo Open Country R/Ts on stock snowflakes with an RC 2” up front. Needs spacers because the 305s rub the arms at full lock, but I get 18-20 mpg on the highway with AFM disabled and a 93 tune.