37" tire width... 12.5 or 13.5?
- Thread starter MedixJK
- Start date
MedixJK
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Hmmmm. Well we all know how much tires cost, so id hate to waste 2k lol. Dont know if the 13.5 pros would outweigh the cons...
blackrubi14
Member
I am running 37" 13.50" wide Toyo's on my JKUR on a 9" rim. I did have to add a couple of washer to the steering stops on the axle, was rubbing on the frame before adding the washers, does not rub now.
MedixJK
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Any idea what ur wheel bs is?
blackrubi14
Member
I'm not 100% sure, but I believe 4.5 BS. They are Dick Cepek Gunmetal 7's.
RockyJk
Active Member
Yea it didnt have any rubbing I was actually kinda surprised since my front axle wasn't centered lol it was on a 4" Evo enforcer and I'm pretty sure the wheels were 17x8
Mike_JK_Houston_711
New member
My wheels are the same size. I'll have to take a closer look tomorrow on of the axle is centered. Lucky you! Lol
Speedy_RCW
Hooked
37" tire width... 12.5 or 13.5?
I may be off base but I think you have backspace and offset confused or I'm not understanding this. Backspace is backspace regardless of wheel width.
Medix, I went round and round between wheels and tires before I finally just sprung for Slabs due to the rubbing issues. From all the reading I've done on it it seems two identical jeeps could run the same setup and one rubs and one does not. I went the 12.5 route on tires strictly due to rating. I believe the 13.5 TG was E rated while 12.5 was D. I thought the D would have a little more sidewall flex. With my tire and wheel combo I'm pretty sure I would have rubbing issues with less than (or more than depending on how you look at it) backspace even with the 12.5. I know that probably doesn't help your decision, just giving you my take on it.
I may be off base but I think you have backspace and offset confused or I'm not understanding this. Backspace is backspace regardless of wheel width.
Medix, I went round and round between wheels and tires before I finally just sprung for Slabs due to the rubbing issues. From all the reading I've done on it it seems two identical jeeps could run the same setup and one rubs and one does not. I went the 12.5 route on tires strictly due to rating. I believe the 13.5 TG was E rated while 12.5 was D. I thought the D would have a little more sidewall flex. With my tire and wheel combo I'm pretty sure I would have rubbing issues with less than (or more than depending on how you look at it) backspace even with the 12.5. I know that probably doesn't help your decision, just giving you my take on it.
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Sithwindu
Member
I too am running a 37/13.50 on atx slabs and no rubbing. Mud grapplers and I'm running a 3 inch front 2.5 back lift. Stock control arms.
MedixJK
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Thanks for the input. Im not going to run a really low bs wheel like slabs, so i think i best go with the 12.50 so i dont get into serious clearance troubles.
Exodus 4x4
New member
I think the bs on my rock monsters is something like 4.6 and I'm running 13.5's. Had to get 1.5" spidertrax because they were rubbing.
MedixJK
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Mmmm pretty bad im guessing by the 1.5 spacers...
Exodus 4x4
New member
Only at full turn. I'm not sure spidertrax makes a spacer less than 1.5". When you think about it, you have to be able to cover the original lug...
MedixJK
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No im pretty sure they dont make anything less, for that reason. If it was a matter of just adding a couple washers to the steering stops, id do it. Sounds more severe than that, which points me further towords the 12.50
Exodus 4x4
New member
Dude just go 13.5's, you won't regret it. Spacers are cheap.
MedixJK
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I thought about that but was worried taking the BS down to almost 3" would be pretty rough on bearings and such...
Edit-but i do like where your heads at
Exodus 4x4
New member
I think someone asked Eddie about it because he runs them on Rubicat and he doesn't think it's that bad. You might look for that. Bearings assemblies are cheap anyways.