Tire Rim Sizes

[rchurchm]

Hello AT4 Owners ...
I am looking at purchasing a 2021 Sierra 1500 AT4 3.0 Duramax … I am in discussions with my dealership currently … one of the final discussions is about using my current winter wheels and rims from my 2018 Sierra … the rims are 17 inch … the wheels are 265/70R17 115R … I have been told that my rims will not clear the 2021 brake components … I get that … I can order 17 inch alloys from GM on sale currently for next winter and use my current snows … they are saying I need to order 18 inch alloys … not on sale ?? l … I also am hoping that I can use my 2018 TPMS sensors from my 2018 … it is stated that in 2017 / 2018 two frequencies were used ?? … 315 MHz or 433 MHz … 2021 has the 433 MHz frequency … the 2018 Sierra is going to traded in for the sale … can anyone help with info please … thank you … regards … Rick C.

 

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[AT4_Guest20]

As far as I know, the diameter should work (17") but I think the problem will be the backspacing to clear the calipers. Keep in mind the front and rear clearance will be different, something to consider when choosing your wheels. I remember seeing a guy on another forum running 17s on a TB with a +12 offset I think. I also think the WT trim comes with 17s so maybe you can start there.

 

[rchurchm]

Thank you ... very much ... MS ... that information will be helpful ... regards ... Rick C.