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How much backspacing do you use?

Discussion in 'The Garage' started by 84gmcjimmy, Mar 10, 2004.

  1. 84gmcjimmy

    84gmcjimmy 1 ton status

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    Hey, I was wondering how much backspacing you have on your rims, and the tire width/rim width you have with it. Thanks!
     
  2. heavy4x4

    heavy4x4 1/2 ton status

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    2.75" backspacing
    33x12.5x15" BFG AT's
    15x8" steel wheels, 8 lug (had the same tires on 15x10" A.R. Outlaw II's with 4" backspacing when I had my 1/2 ton axles)

    Pics of both setups in the link in my signature.
     
  3. Okiemuddog

    Okiemuddog 1/2 ton status

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    I just ordered a set of 15x10 8 lugs for my 38.5x14.5 TSL/SX's, they are 4.25 backspacing, so going to have to grind my D60 calipers /forums/images/graemlins/hack.gif
     
  4. HarryH3

    HarryH3 1 ton status Author

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    4.25 inch backspacing on 15x10 wheels with 35x12.50 BFG Mud-Terrains mounted on them here. I like the way it keeps the tires tucked under the fenders. /forums/images/graemlins/cool.gif But as you get into larger tires then less backspacing can help keep the inside of the front tires away from the frame when turning.
     
  5. leadfoot067

    leadfoot067 1/2 ton status

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    15x8 8 luggers with 4" backspace....38.5/14.50/15 SXs....3/4 ton brakes on my front 60= minimal grinding... /forums/images/graemlins/thumb.gif
     
  6. 84_Chevy_K10

    84_Chevy_K10 Banned

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    38.5x16x15 TSL
    15x10 wheels 4.25" Backspacing
    D60 front

    REAL D60 brakes on my D60, so four hours last weekend grinding each side (good thing a fellow CK5er showed up to help out and we both finished at about the same time).

    Fitting 15" rims so you can have a safety bead, AND running enough BS to keep the maximum amount of tire tucked under the fenders.....

    Priceless! /forums/images/graemlins/thumb.gif /forums/images/graemlins/rotfl.gif
     
  7. Beast388

    Beast388 1/2 ton status

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    I'm using US Wheel Model 70's (white spoke 8-lug) in the 15 X 10 size with 4.25" BS. I have 35 X 12.5 X 15 Goodyear MT/R's mounted to them. /forums/images/graemlins/waytogo.gif /forums/images/graemlins/peace.gif /forums/images/graemlins/woot.gif
     
  8. TWISTEDJACK

    TWISTEDJACK 1/2 ton status GMOTM Winner

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    I have 40's on 4.25 15X10. I have the axle forward 1.5" and I had to cut /forums/images/graemlins/hack.gif the core support to clear. O yeah and grind the crap out of the calipers.
     
  9. Ryan B.

    Ryan B. 3/4 ton status GMOTM Winner

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    2.75" backspacing on 15x10's with 35"s on my D60. required very little caliper grinding. /forums/images/graemlins/thumb.gif
     
  10. fortcollinsram

    fortcollinsram 1/2 ton status

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    Ryan,

    How much do you tires stick out from under you fenders? Got any pics looking down the side to get an idea...

    I am still trying to figure out the optimal BS on my truck with a D60 and 15x10's


    Chris
     
  11. Z3PR

    Z3PR Banned

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    15X10 8 lug rims with 3.5" back spacing. 36X14.50X15 Ground Hawg 2's
     
  12. Butch

    Butch 1/2 ton status

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    15x8 with 12.5 x 38TSL's about to be 42's. Front backspacing is 3.5" rear is 2" My track width is equal without having to run spacers, but if you drive on the street then you can't rotate your tires either.
     
  13. FWP

    FWP CRS

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    Hey leadfoot, Have you moved your axle forward at all? Do the tires hit your springs at full lock? Just curious, my sx's are on the way here right now. I'm running identical front as you, with the exception of 10" wide rims. Thanks.
     
  14. leadfoot067

    leadfoot067 1/2 ton status

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    my axle is 1" forward and my tires i havent installed yet...but my 36SXs didnt rub nor were they close...
     
  15. CyberSniper

    CyberSniper 1/2 ton status Premium Member

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    33x12.50s on 15x10s with 4" of backspacing. You can get away with as much as 4.25" of backspacing with 15" steel wheels before you start rubbing on the tie rod end. And it's really tight.
     

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