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Thread: Driveshaft Question

  1. #1
    Registered Member Tabasco's Avatar
    Join Date
    May 2012

    Member #:615
    Poolville, Texas

    Driveshaft Question

    Since we are putting a 700R4 in my wife's car we need a shorter drive shaft. I used the original on another project because I thought I had another driveshaft to shorten. When I dug it out I realized the driveshaft is 2 1/2 inches while the original one was 3 inches. This one was in a 70 Nova. Does that make a difference in strength? We are not going to be drag racing but we are running over 350 HP. Or do I need to find another one?

  2. #2
    Registered Member
    Join Date
    Apr 2012

    Member #:571
    Yes it does make a difference in strength and stiffness, but how much do you need?

  3. #3
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Fort Collins, CO
    If it worked in a 70 Nova, why wouldn't it work in a 56 Chevy? Smaller diameter with same wall thickness would make it "weaker". A thicker wall would improve the strength some. It wouldn't be hard to calculate the difference if you knew the dimensions.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension

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