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  1. 90slvpup

    Toyota springs/axle interchange question

    Here it goes, there would be no point in swaping out your FJ 40 front out for a pickup front for two reasons: 1st The diff is stronger an 8.8'' diff ring gear. 2nd all you have to do is weld perches onto the top of the FJ 40 to do a spring over design which would be the best way to go. so it...
  2. 90slvpup

    Toyota springs/axle interchange question

    I have been corrected, an FJ 40 has about 1 inch shorter axle shafts than a Pickup/Runner. I asked around but havent heard back if you could run a pickup axle underneath your FJ 40 without modification. Ill keep you posted. Mason
  3. 90slvpup

    Toyota springs/axle interchange question

    A pickup and runner axle will be skinnier than your 40 but it is basically the same 8'' diff that most toyotas use. the 8 '' diff is actually just about as strong as a D44. but like the guy said before if you are trying to use those springs on your 40 they will just sag. you need a different...
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