wheel backspacing...

Discussion in '40- & 55-Series Tech' started by 74cruiserintexas, Dec 27, 2002.

  1. 74cruiserintexas

    74cruiserintexas

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    I save seen diffrent folks say you need 3 1/4, some say 3 1/2, some say 3 3/4...Which is best?? JT Outfitters has some nice aluminum rims on sale with 3 1/4 backspacing. Will these work with a lift and running 33's???
     
  2. rusty40

    rusty40

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    yes they will fit

    3.75 is the most that will clear the tie rods
     
  3. woody

    woody unhelpful spotter Staff Member Admin

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    You often need that extra 1/2" with alum rims because while lighter, they are thicker and may rub the calipers.

    IMO, steel is 3-3/4 and alumm is 3-1/4. I plan to run 2-1/2 with my beadlocks, someday....a bit more stance for added offroad stability.
     
  4. teat

    teat

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    off set
     
  5. jsuthey

    jsuthey

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    Hey Woody,thanks for the friendly tug out at Pismo Sn'T a few years back.We were wheeling Mark's green/wht.top 55 and got stuck on that ridge in that super windy sand storm afternoon!!
    Sorry off topic,back to backspace,I have a 2.5" 15x8 black steel for a spare and it does not clear calipers very well.Might have to do a little light grinding.I want to make sure it fits so I can replace the other 4 wheels(they are older chrome metal with black centers with a 3.75" bs) with the old wheels I use a 1/4" spacer to clear tre's.So maybe 3.5" would work better for me as I have not mounted up the spare yet.
    John
     
  6. vfrer

    vfrer

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    I also had a caliper clearance issue with 2.5 inch backspace wheels. I bought the wheels below...

    Pro Comp Wheels 52-5883R2-5 - Pro Comp Xtreme Rock Crawler Series 52 Black Wheels - Overview - SummitRacing.com

    The d-shaped cuts in the center have a lip on the back side and that is what was hitting the caliper. I am using 1/4 inch spacer to clear... was a little disappointed I still had to use spacers. I did not want to grind my new wheels at the time but I may now that I have plenty of rock rash on them.

    Just wanted to add that I think these wheels would have rubbed the caliper regardless of the backspacing.
     
  7. jsuthey

    jsuthey

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    Vfrer,I will try my spare with the 1/4" spacer to see if it clears better.Are you ok with the way the wheels stick out a bit more?As Woody said you get a wider stance.
    So Summit charges like 10 bucks more a wheel,4WP always has them for $55.95+ free S/H.Just sayn for someone else to save a few bucks!
    4WP has got the 15x8's in B/S 2.5",3.5" & 3.75".I might try the 3.5" so maybe I won't need the spacers and have more grab with the lug nuts.
     
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