toho and drag truck
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toho and drag truck

  1. #1
    Junior Member 1lifesaver's Avatar
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    Feb 2011
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    Default toho and drag truck

    my buddy and i were bench wrenching over a cold bud yesterday.he has a nice little short early 80s chevy 1/2 ton with an ls7 {thats old school gen 4 454 hi perf for the younguns]and turbo 400.he wants to tow a little and race a little.we were arguing about rear diffs.of course he wants a 9 inch,but has a 12 bolt in it i think and a 14 bolt laying around the shop.what ratios would work and any ideas about the diff

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  3. #2
    CAPTAIN KRYLON
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    Jul 2009
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    I have drag raced both cars & trucks that I have built. Due to the weight of that truck I would run a 9 that is back braced with a high quality center section, nice tight limited slip or a locker. Don't know why, I am just a fool for a locker.
    The 9 inch housing is easier to brace than the 12 bolt.

    I have bent the tubes on a full width 12 bolt forward on the wheel ends with not much car.( 450hp 383 & a 150 shot in a 3100lb Nova.)

    I have no experience with the 14 bolt. But not being much of a 3/4 ton guy it seems like a tow truck part to me. Lots of extra weight for no good reason.

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