37's on my 2024 zr2 bison 2500hd.
- Thread starter Hpmaniac
- Start date
I don't know for sure. I put on Toyo MT 37x13.50R18 and it barely cleared the UCA with steering static and full lock. I figured if I dropped down to below 30 psi it would squat and rub and also flex to much in off camber situations. I will run 15 psi in soft sand in the dunes. Sometimes run 30 psi on desert and forest roads when hunting and fishing to smooth out the ride.
I was planning on going to a 0 or -12 offset wheel, but there aren't many options for 8 lug wheels in 18 inch rims. May have to go to 20 inch wheels.
37s definitely look good.on this rig!
I was planning on going to a 0 or -12 offset wheel, but there aren't many options for 8 lug wheels in 18 inch rims. May have to go to 20 inch wheels.
37s definitely look good.on this rig!
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Yeah, part of my objective was a wider stance. With 37s, I like the proportions of the 13.5s. I will likely end up with a wider rim with compatible offset. I really like the Bison wheels, so disappointed to not be able to run them.
Kel
Active member
Which Nittos did you go for? There are slight differences in overall diameter.
I've always liked the Mickey Thompson tires. I've never run them, but if I didn't like Toyos so much, that's what I'd run. I've run a couple sets of Nittos, that were pretty good. They just didn't seem to be as good towing heavy (12-14k lbs) for me. You wouldn't think the Toyo MTs with those big lugs would tow good, but they did. The Toyo RT Trails tow good too. I did a 1600 mile trip at about 12k lbs and I was very happy with them.
That is AWESOME!!
BW0311
Active member
Truck and tires look awesome! I'm guessing you leveled the front end?
- Thread starter
- #14
No, I did not level it. Only thing I did was crank bars 1 turn and that didn't really raise the front maybe 1/4 inch. These trucks take a 37 easy with plenty of room. Has to be a 12.5 or you will have issues touching upper control arm.
The 25 or 26 bison will have a 37 according to a gm rep I spoke with.
BKB5
Member
Looks great!!!
mwsracerx
New member
Great looking truck!
Were you able to fit a 37" on the spare as well?
Yea your tires are 14.2 inches wide when inflated to spec. I'm actually surprised its not rubbing right now.
Did you also do a 37" spare?
I'm installing some BFG KO2's 37x13.5 on Thursday. Overall width is supposed to be 12.8 I will report back about fitment. I wouldn't mind running a BORA 3/8 spacer worst case scenario.
The only reason I picked BFG KO2's was due to Triple Peak Snow Rating. We are planning a trip to tahoe and figured it's a good enough reason for a forced upgrade.
I only did a test fit on mine, I am not running them. There was enough clearance for daily driving, not enough for me to be comfortable offroadYea your tires are 14.2 inches wide when inflated to spec. I'm actually surprised its not rubbing right now.
Did you also do a 37" spare?
I'm installing some BFG KO2's 37x13.5 on Thursday. Overall width is supposed to be 12.8 I will report back about fitment. I wouldn't mind running a BORA 3/8 spacer worst case scenario.
The only reason I picked BFG KO2's was due to Triple Peak Snow Rating. We are planning a trip to tahoe and figured it's a good enough reason for a forced upgrade.
I'm still looking for some wheels I like. A lot of them I like with 0 or negative offset require 20 inch wheels and I wanted to stick with 18.
Toyo AT3s have 3 peak rating too.
A 37 spare will probably fit, but you might have to relocate the heat shield an inch over. You don't really need a 37 spare. You can move the 35 to one of the front corners in 2WD and get where your going.
Silverado ZR2 Photos
Silverado ZR2 Photos
