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  1. #1
    Under Observation TAC_260's Avatar
    Date Committed
    Jan 2012
    Location
    Olathe, KS
    Posts
    48

    Backspacing question

    Is there any reason that a 3.5" backspace on 17 x 9" wheel would be a bad thing?

    Sent from my Nexus S 4G using Tapatalk
    2010 Black Rubi Unlimited
    RC 3.25" - Mopar Rear Bumper w/ Tire Carrier, Cobra WX75, Wilson FGT3 - LoD Rails - #1 mod = Britax seat for the cargo!

  2. #2
    Bat Shit Crazy tcDawg's Avatar
    Date Committed
    Dec 2011
    Location
    Woodstock, Ga
    Posts
    1,967
    I wish my 17 x 8 wheels were 3.5 bs. Ive got 4.5 and they rub the lower RK control as at full lock. I've got two washers on the steering stops, so I loose some turning radius.

    I don't see a problem with the 3.5" bs at all. You may loose some coverage from your fender flares but that's a minor issue in my mind.
    TC
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  3. #3
    Under Observation TAC_260's Avatar
    Date Committed
    Jan 2012
    Location
    Olathe, KS
    Posts
    48
    Thanks for your input...I only want to order wheels once, so I'd like to learn from anybody else's mistakes.

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  4. #4
    Haldol Shuffle The Clam's Avatar
    Date Committed
    Dec 2011
    Location
    Denver, CO
    Posts
    691
    James just put some 3.5" backspacing on his... I thought it would put some additional stress on the BJ's, but I'm no expert on this....

  5. #5
    Under Observation TAC_260's Avatar
    Date Committed
    Jan 2012
    Location
    Olathe, KS
    Posts
    48
    Quote Originally Posted by The Clam View Post
    James just put some 3.5" backspacing on his... I thought it would put some additional stress on the BJ's, but I'm no expert on this....
    I was also worried about that. If a steel wheel and 35" tire weighs 120#, pushing 1" out past center would place approximately 13.3 lbs more weight on the outside of the hub and that is un-sprung weight.


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  6. #6
    I don't have legitimate input here about the ball joints, but I have 3.5" BS on my wheels and I can take some pictures if you're looking for the distance they stick out from factory fenders.
    2004 TJ

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  7. #7
    Under Observation TAC_260's Avatar
    Date Committed
    Jan 2012
    Location
    Olathe, KS
    Posts
    48
    Quote Originally Posted by VikingGinger View Post
    I don't have legitimate input here about the ball joints, but I have 3.5" BS on my wheels and I can take some pictures if you're looking for the distance they stick out from factory fenders.
    Thanks for the offer, but I live in Kansas where I can run without fenders if I wanted...even though I have full fenders, I like the wide stance look.

    The reason I'm considering having Marsh make my wheels @ 3.5" BS is in case I decide to get 13.5" wide tires for my next set. Currently I have 31K miles on factory ball joints and by the time I drop all of my money on wheels and tires, I was just concerned my DD may have to sit in the garage until funds come available for new Synergy BJs.

  8. #8
    Powered By power bottoms jkristie44's Avatar
    Date Committed
    Nov 2011
    Location
    Pensacola naval base checking out the mens in uniform
    Posts
    4,546
    I don't know anything about what the long term effects are on Ball Joint and shit. Clam mentioned 3.5, but I have 3.75. Not sure .25 makes any considerable difference. Also, I have 15's and the 35 tire and wheel are lighter than my old 33's on steel wheels. Alot lighter. I guess it's the C ply's that are making the difference.

 

 

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