37’s on stock ZR2 Bison HD??

[bigbisonHD]

Just upgraded from a 2022 1500 ZR2 to my new 2025 2500 ZR2 Bison. Loving it so far, but ready to put it on 37’s.

Long time reader of this forum and I’ve seen some mixed results on the stock AEV wheels. Does anybody know for sure that 37’s will fit on these stock wheels, without touching the torsion keys, or a level?

Looking at the RT Pros from Toyo or the KM3s in a 37 x 12.50

I also could go for the McGoughys 4” lift in the future, but would love to just be able to throw 37’s on and call it a day for now.

 

[AXE]

They'll fit, been done many times. 12.5 is a little better than 13.5 for clearance between the UCAs.

There's nothing to worry about cranking up the torsion bars 3 or 4 turns and it still rides great. Plus it looks a little better.

Check out the threads for pictures and results.

 

[bigbisonHD]

They'll fit, been done many times. 12.5 is a little better than 13.5 for clearance between the UCAs.

There's nothing to worry about cranking up the torsion bars 3 or 4 turns and it still rides great. Plus it looks a little better.

Check out the threads for pictures and results.

Sounds good to me. Thanks for the response

 

[IrishRedFish]

Been running 37x12.50 Nitto Ridge Graps on stock bison wheels for over 3000 miles in every condition. All Stock and Have not touched torsion bars. Runs Perfectly!!!! You'll be Fine!