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Teach me about backspacing...

Discussion in 'The Garage' started by SchnorrCS, Oct 30, 2006.

  1. SchnorrCS

    SchnorrCS 1/2 ton status

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    Hey guys...I need some help with backspacing. I am going to be running 36 14.5 15 swampers, and want to get an idea of the backspacing I will need to run. Not alot of lift on this truck, about 2.5" but the fenders are WAY cut up, so I'm not real worried about rubbing, more concerned with tie rod and stuff. Little help?

    Thanks
    cS
     
  2. SchnorrCS

    SchnorrCS 1/2 ton status

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  3. goldwing2000

    goldwing2000 Guest

    If you're running the stock 6-lug axles, the most you'll be able to manage is about 3.75" before it hits the TREs.

    If you're running 3/4-ton or 1-ton gear, you'll have to either limit yourself to 2.5" backspacing or grind your calipers down.
     
  4. SchnorrCS

    SchnorrCS 1/2 ton status

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    TREs? Tie rod ends?

    Right now I'm looking at 3.75. That's the most I can push the rims/tire OUT twords the fenders, right?
     
  5. goldwing2000

    goldwing2000 Guest

    Yes, tie rod ends.

    And no, 3.75 is the most you can push 15" wheels IN towards the axle. You can push them as far OUT as you want but if you push them too far, then it will put excess stress on your wheel bearings and you'll really have to hack the fenders.
     
  6. SchnorrCS

    SchnorrCS 1/2 ton status

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    OK...I see. I was trying for a little more track width...
    What do ya think I should go with?
     
  7. goldwing2000

    goldwing2000 Guest

    No less than 2.5" but honestly, I'd stick with 3.75". The stress on the wheel bearings negates any increase in track width if you push the wheels out.

    If you want it to be wider, you're better off getting wider tires and wheels to keep the bearing load more centered.
     
  8. SchnorrCS

    SchnorrCS 1/2 ton status

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    Cool. Well, I took your advise and ordered up the rims, they are supposed to be here tomorrow. I'll post picsd when I have the 36s mounted!:bow:
     
  9. goldwing2000

    goldwing2000 Guest

    Sweet! What did you end up going with?
     
  10. muddybuddy

    muddybuddy 3/4 ton status

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    very nice. get pics when you get 'em
     
  11. SchnorrCS

    SchnorrCS 1/2 ton status

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    Ended up with 15x10 with 3.75 BS, and 36 14.5 15 Swamper TSL Radials. They are about half gone, but they are just the ones I'm using for the build. Once I get the suspension finalized, I should be using 38s
     

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