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Thread: 3.73s or 4.10s????????????

  1. #1
    Senior Member EXPERT BUILDER
    Join Date
    Nov 2008
    Posts
    263

    3.73s or 4.10s????????????

    i have a 385 ci motor with a th350 trans
    its still gonna be a daily driver, but ima take it to the stirp every once in a while
    i dont know if i should go with 3.73s to 4.10s in the rear
    any suggestions?

  2. #2
    Senior Member RACING JUNKIE
    Join Date
    Feb 2004
    Location
    san antonio, texas
    Posts
    1,233
    they both work well on the street, depending on tire size and
    is this a 10blt? 3:73 worked great for me on a street/strip car,
    with out a problem www.tomsdifferential.com,
    www.strangeengineering.net, i have worked with both these guys,
    and they won't gear you wrong, good luck :wink: MADE IN USA

  3. #3
    Senior Member DYNO OPERATOR
    Join Date
    Feb 2009
    Posts
    510
    After years of running 3.73' on the street and racing with them, I put 4.10's in my car and wish I would have put 3.73's back in instead. Of course, Pontiac's don'tlike to turn a whole lot of rpm's.

  4. #4

  5. #5
    Senior Member EXPERT BUILDER
    Join Date
    Apr 2009
    Location
    odessa tx
    Posts
    288
    im one of his fraiends and im sure it'll be both cause we have penwell and cesert thunder right by us and if i know bowhay hell wana show off his truck at both
    pray for our soldiers our freedom and rain


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