What 37" tires could fit in the 17" oem offroad...

[K-MU]

Hi guys, I currently have a rancho suspension lift with oem 17" off road wheels and BFG 35" MTs...

For my next tire change before christmas I want to consider the probability of using 37" tires on the oem wheels, I will raise the truck just enough(front 7" and rear 3.5" to 4.5") to clear the tires and want to keep th eom wheels because of its offset advantage to run larger tires...

Here is some info I have

size diameter width rim size
BFG AT 37x12.5 36" 12.8" 8.5-11"
BFG MT 37x12.5 36.5" 12.5" 8.5-11"
GY MTR 37x12.5 36.5" 12.5" 8.5-11"
PC X-AT 37x12.5 36.9" 12.8" 8-10"
PC X terrain 37x12.5 36.9" 13.4" 8-12"
Nitto MG 37x13.5 37" 14.27" 8.5-11"
Toyo AT 37x14 36.5" 14.17" 9.5-11"
Toyo MT 37x13.5 37.1" 14.6" 8.5-11"
MT Claw 37x13.5 36.9" 13.9" 8.5-11"


What do you guys think?

Im thinking BFGs and the Pro comps

[NorCal 4x4]

Originally Posted by K-MU

Hi guys, I currently have a rancho suspension lift with oem 17" off road wheels and BFG 35" MTs...

For my next tire change before christmas I want to consider the probability of using 37" tires on the oem wheels, I will raise the truck just enough(front 7" and rear 3.5" to 4.5") to clear the tires and want to keep th eom wheels because of its offset advantage to run larger tires...

Here is some info I have

size diameter width rim size
BFG AT 37x12.5 36" 12.8" 8.5-11"
BFG MT 37x12.5 36.5" 12.5" 8.5-11"
GY MTR 37x12.5 36.5" 12.5" 8.5-11"
PC X-AT 37x12.5 36.9" 12.8" 8-10"
PC X terrain 37x12.5 36.9" 13.4" 8-12"
Nitto MG 37x13.5 37" 14.27" 8.5-11"
Toyo AT 37x14 36.5" 14.17" 9.5-11"
Toyo MT 37x13.5 37.1" 14.6" 8.5-11"
MT Claw 37x13.5 36.9" 13.9" 8.5-11"


What do you guys think?

Im thinking BFGs and the Pro comps

Those are also the only ones I would consider, but only with the 7" lifts. Your current Rancho "4" lift is actually 5.5" if I recall.

You should ask the guys running 35x12.5-17 tires to see if the extra inch each side of the axle will be a problem. It all depends where the rubbing is. Austin (with a Fabtech lift, I think), ended up trimming his fenders to fit 37s, (I don't remember the tire brand). Could have been due to aftermarket wheel off-set too.

Edit: found his Tire/wheel info. "Tires are 37x12.50x17 BF Goodrich Mud Terrains on 17x10" MB Motoring wheels (-25mm offset, 4.5" backspacing)". So according to the wheel off-set calculator, these wheels would stick out ~3" further than OEM off road rims.

The 12.5" or 12.8" are equivalent to 315 or 325s, but these are somewhere between a 75 and 80 series tire, so on the thin side compared to the height, (37").

.

[K-MU]

Its gona be either the BFG ATs or the PC X-ATs...

BFGs 36" tall
Pro comp 36.9" tall

I think I can probably get away with the BFG ATs with my current lift