I have a 1992 Wrangler with new 30x9.50R15 BF Goodrich AT KOs and a stock suspension. I plan on lifting it next year...after the wedding expense is behind me! But right now I plan on adding a set of black steel 15x8 wheels (guy wants to buy my stock wheels!). What backspacing should I get? Pictures would help. Thanks.
your stock wheels are most likely 5 1/2" (5" if you have the small steelies) and most people go sith 4 1/2" aftermarkets, you don't need more back spacing if you don't go up to a 33x12.50 or bigger, I ran 31x10.50 on stock rims for a while and never rubbed at all (at lease the springs/frame, fenders a different story )
Years ago the YJ had 4.75" backspace 15 x 8 on 33s.
My TJ now has 4.75 backspace 15x8 on 30s. It will get 31s when they wear out - it's my DD.
You really can't see much from these angles though. Personally I would stay with 8" wide. I don't like the low backspace wheels (<4") because it sticks the tire out too far, which looks goofy to me, and it puts more stress on your unit wheel bearings also. JMHO.
Personally I would stay with 8" wide. I don't like the low backspace wheels (<4") because it sticks the tire out too far, which looks goofy to me, and it puts more stress on your unit wheel bearings also.
Wait, so 1" (25.4mm) backspacing sticks out MORE than 4" backspacing? I would totally think that it is the other way around if you hadnt said this.
We've got 33 x 12.5's w/ 4" backspacing on the same 15x8 rims as Pete's black D's above. Look great and perform well. We tried to reuse the factory aluminum rims, but the backspacing (5.5 I think) was too deep, couldn't get the steering wheel to turn fully w/o hitting the sway bar. And no, we're not pulling the sway bar just yet, maybe down the road, but not yet, son is too young behind the wheel.
A positive 25.4mm is 1" further IN towards the truck. A negative 25.4mm is 1" further OUT from the truck.
Technically, the correct terminology is positive and negative OFFSET. Backspacing is usually a positive value. I don't think I've seen or heard of a "negative backspace" wheel.
To answer the question - yes, a 5" backspace sticks out LESS than a 3.5" backspace. Think of backspace as the distance from the MOUNTING SURFACE of the hub to the BACK of the wheel. So a 5" backspace would have the back of the wheel 5" inside the hub surface, while a 3.5" backspace would only be 3.5", making the wheel stick out more.