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Discussion Starter · #1 ·
Got a set of 2021 at4 wheels going on a 2011 Sierra z71 w/Goodyear duratracs
Center bore is the same
Lug pattern the same
Lug thread size is the same
My question is do I use the lug nuts from the 2011 ? Only difference is the length
45.9mm for the z71 & 1.752”(44.5mm) for the at4… any input is appreciated
Also this is my first time buying used off-road wheels obviously I don’t know where each tire was mounted but it’s clear which ones were the fronts based on the wear so should those just go straight back and back to fronts ?
thanks again
 

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2002 RCSB Z71
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The thread patterns are the same back into at least the 90's. Different wheels can use different shape or length lug nuts you'll have to wait and see if the length matters unfortunately. It's recommended to keep the best tread tires on the front.
 

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2015 GMC Sierra 1500 4x4 leveled and 2015 GMC Sierra 1500 2wd lowered.
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Does a 2011 have the factory tire pressure monitoring system? 2021 tpms will not work with 2011. For 2019 - newer, GM switched to 433Mhz. I put some 2020 AT4 take off wheels on my 2015 Sierra and had to change the sensors back to the 315Mhz version. I also used the original lugnuts that came with the AT4s.
 

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2015 GMC Sierra 1500 4x4 leveled and 2015 GMC Sierra 1500 2wd lowered.
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434 Posts
The at4’s I picked up didn’t come with lug nuts or the tpsm just going to use the sensors from my 2011
If they are the factory 2011 sensors, you may want to think about replacing with new ones. The battery life is typically 10 years. Really cold weather triggers the SERV TPMS message when the batteries get weak and the system loses communication with one or more sensors.
 
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