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Old 07-19-2003, 10:57 AM   #1 (permalink)
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How do I determine backspacing?

My B-Day is coming up and my girl wants to buy me some new wheels. I have a 1983 toyota pickup 4x4 and am mostly stock. I will soon be converting to hy-steer crossover and I'm about to start my spring swap. I want to be able to keep these wheels while building up my rig so how do I deterine what back spacing to get? The wheels will be 15x8 if thats any help, and will be on my 31" BFG's. They will shortly be mounting some 35x12.50 Goodyear MTR's. Thanks for the help.
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Old 07-19-2003, 01:11 PM   #2 (permalink)
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You have it easy!!! Choose a backspacing, then modify your fenders/lift to make it work!

Go with 3 or 3.25 inches. If you want extreme, go 2 inch, but that sticks the tires out pretty far, puts more stress on the bearings, and you're probably not going big enough to warrent them yet.

Wanna go cheap? Find a joint that sells used tires/rims. Get a set of 15x8 black rockcrawlers or wagon wheels. Most of them were about 3.25 or 3.5 inches BS, I got a set of 3.25 for $60. Sure, they needed a good scratching with some sandpaper, and some coats of cheapo black paint, but they are in great shape now, for about half what you would pay anywhere else.
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Old 07-19-2003, 01:52 PM   #3 (permalink)
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A 3.5 inch backspaced wheel will allow the tires to rub on the springs while turning sharp with a 36+ inch tire.

I run a 15x8 2" backspaced wheel (black steel) I bought from 4WheelParts for $40 each. Money well spent... no rubbing, and I'll do a weld-on beadlock install someday. 2" Backspaced 15x8 black steel wheels, Toyota bolt pattern:
4 Wheel Parts Part # 515883R2.




2 inch backspaced wheels will look goofy until you get a decent size tire, yes, but you'll only have to buy wheels once. I run a 38.5x14.50 with no rubbing on that wheel, and no need to spend extra $$$ on wheel spacers.
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Old 07-19-2003, 05:07 PM   #4 (permalink)
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Quote:
Originally posted by TNToy
A 3.5 inch backspaced wheel will allow the tires to rub on the springs while turning sharp with a 36+ inch tire.
I don't have that problem! My front springs are well protected from the tires, they'd have to grind through the frame to get to the springs
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Old 07-19-2003, 05:16 PM   #5 (permalink)
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