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Old 08-16-2015, 09:07 PM
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Location: Benton, Arkansas
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backspace question

I think I'm going to buy the zone 4" lift for my 94. On the Zone page, it states this about the lift:

Wheel Size: 15 x 8
Back Spacing: 3.5-4″
Max Tire Size: 33″ x 10.50 ″

I've got aftermarket rims. My rough measurements of the rim with it still on my tailgate shows that the rims are 10", with a 4" backspace. So when purchasing new tires to go with this lift, I can't go larger than 10.5", even though my rim is larger than what is stated in the zone specs, correct? That 10" versus 8" doesn't mean anything... It's the backspace that counts, right? So if I wanted an 11.5" tire, I'd have to buy spacers.

And speaking of spacers.... Is there a difference in spacers based on price? A quick Internet search came back with aluminum 1.5 spacers ranging from $70 for 4 to $150 for 4. Is there really a difference?

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Old 08-18-2015, 02:59 PM   #2
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You are very close with the numbers. Although you will have a difficult time finding a 33 that is only 10.5 wide.

The optimum backspacing is 3.75". and you can run a 33X12.5X15 on an 8" wide wheel with no rubbing in the turns. The 10" wide wheel with a 4" backspace and its probably going to rub on the leaf springs when you turn. You can prevent this by running the steering stops out so that the turning radius is larger and it will prevent the rubbing. Or get new wheels.

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Old 08-18-2015, 10:33 PM
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Thanks for the response.. I've been rethinking this anyway. I stopped by a couple of tire stores yesterday, and have pretty much decided on getting the BFG KO2 all terrain in a 32 11.50 15. It'll be a close fit. I'll adjust those steering stops if I get some rubbing. Hopefully it'll just squeeze in.
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