Post your T1 wheel/tire setup

[jail4u677]

NEED INFO!  Today, I took my 2019 GMC AT4 to the shop to have the Readylift 2in SST kit installed with a set of 305/50R20 Nittos on my stock rims.  Shop just called and said only way to run these tires & rims is with a 1/2 to 3/4 inch spacer.  Anyone else with same setup have this issue???

[Smrtasp]

That tire is 12.5 wide. If you are running it on a stock wheel, the spacers would make sense as I think the stock tire is 11.4 wide. Its probably getting really close to the UCA given the factory offset.

[WheelsASAP.com]

39 minutes ago, jail4u677 said:

NEED INFO!  Today, I took my 2019 GMC AT4 to the shop to have the Readylift 2in SST kit installed with a set of 305/50R20 Nittos on my stock rims.  Shop just called and said only way to run these tires & rims is with a 1/2 to 3/4 inch spacer.  Anyone else with same setup have this issue???

That is certainly a known issue. Your factory wheels don't offer the offset / backspace required to clear your upper control arms. If you decide to run spacers make sure you go with hub centric quality spacers such as those offered by Bora. 

[jail4u677]

4 hours ago, WheelsASAP.com said:

That is certainly a known issue. Your factory wheels don't offer the offset / backspace required to clear your upper control arms. If you decide to run spacers make sure you go with hub centric quality spacers such as those offered by Bora. 

Thanks!!!  Any idea on spacer size?  Tech at the shop said 1/2 " to 3/4 ".  Did some internet shopping and most I found were 1" or greater.  I figure better to go with a little bigger in the 1" than not enough.

[grrr027]

7 minutes ago, jail4u677 said:

Thanks!!!  Any idea on spacer size?  Tech at the shop said 1/2 " to 3/4 ".  Did some internet shopping and most I found were 1" or greater.  I figure better to go with a little bigger in the 1" than not enough.

Your stock wheels likely sit approx. 3/4 inch inside the wheel well, give or take. So if you go with a larger spacer than that, you’ll have some poke. My suggestion would be to go with what the shop recommends.

[jail4u677]

Thanks again.  Any ideas on where to shop that I could get them fast?  Also, some places sell as a pair and others sell all four.  Do I need 2 or 4?

[loud_pipes]

NEED INFO!  Today, I took my 2019 GMC AT4 to the shop to have the Readylift 2in SST kit installed with a set of 305/50R20 Nittos on my stock rims.  Shop just called and said only way to run these tires & rims is with a 1/2 to 3/4 inch spacer.  Anyone else with same setup have this issue???

This might help you and your shop.


https://wheelsasap.com/gmc-at4-oversized-tire-trimming-guide/


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[FlyerPete]

 2019 SLT 2in GM Lift. Just put on set of KO2s.  275-65-20 (34" tire)

[CrunchyBlack_386]

19 hours ago, FlyerPete said:

 2019 SLT 2in GM Lift. Just put on set of KO2s.  275-65-20 (34" tire)

Looks great! Any rubbing at all?

[Delta D]

1.75 Bora spacers, stock wheels and tires - before/after photo attached.

[FlyerPete]

2 hours ago, CrunchyBlack_386 said:

Looks great! Any rubbing at all?

No rubbing full lock.  I can fit my hand between tires and front liner and 1/2" clearance on rear liner.  

[BetaX]

2" SST

285/75/18 Nitto Ridge Grapplers

Zero rubbing anywhere surprisingly.

Very little clearance on the upper control arm but it clears. Don't think you could go any wider without different wheels or addition of wheel spacers. 

[N2HighVoltage]

2020 GMC SIERRA 1500 4X4 CREW CAB 3.0 Duramax

Front: FOX 2.5 Coilovers front (3.5” of lift)

Rear: Deaver mini pack w/FOX 2.0 (1.5’-2” lift)

Wheels: American Racing AX202 18x9 0mm/5.0” backSpacing

Tires: BFG K02 35x12.50x18
Trimming required...good instructions adjust based on your needs...no rubbing now.  

 

 

 

[langston1726]

2020 GMC SIERRA 1500 4X4 CREW CAB 3.0 Duramax
Front: FOX 2.5 Coilovers front (3.5” of lift)
Rear: Deaver mini pack w/FOX 2.0 (1.5’-2” lift)
Wheels: American Racing AX202 18x9 0mm/5.0” backSpacing
Tires: BFG K02 35x12.50x18
Trimming required...good instructions adjust based on your needs...no rubbing now.  

 

 
 

Nice set up! How are you liking the Duramax?


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[N2HighVoltage]

Fricken love that 3.0!!!

Edited July 21, 2020 by N2HighVoltage