Differential Rebuild - Truetrac, 1310 U-ioints - Page 2

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  1. #11
    CelicaSupra.com Member SupraFiend's Avatar
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    Mar 2003
    Vancouver, BC
    I believe one other person has reported the smaller case size besides us with the diff we put into DeanFuns 85. I was going to ask about that, did your diff guy report having issues using factory carrier shims? I would like to know if ours was a "made on friday afternoon special", or if they actually intentionally changed the case size and all forthcoming cases are going to be like that.

    Also I was going to mention since it hasn't come up here yet, its always best to source a complete pumpkin with the gear set already in it that you want vs swapping in another R&P. You wouldn't have run into this since you ended up with a used case by necessity, but we swapped in a low miles 3.72 R&P from another diff and it highly complicated the install. The pumpkin cases, R&P and the pinion spacers (not the one for backlash) are a matched set. If you change any one of those 4 items, you are stuck using a monotonous process of trial and error of trying different pinion spacers till you get the pinion depth and pattern correct. Not to mention you will need a large range of pinion spacers on hand, and you will either need the weir solid pinion spacer kit (for setting backlash) or a large collection of crush spacers as you will burn one on every pinion spacer trial.
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  3. #12
    CelicaSupra.com Member Funkycheeze's Avatar
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    Feb 2004
    Calgary, Alberta, Canada
    Yeah, setting pinion depth can be a pain - you can do it without crushing a tube every time (the TSRM shows the way) but it is still preferable to get a pumpkin that has the gear ratio you want from the start.
    '84 P-type, 5spd, torrid red, black/grey leather
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