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  1. R

    Need Help to know if this will work

    I have a 74 C20 with 14bolt rear end, 3.73 gears; however it does not have posi traction. I want to change out the differential. Here's what I've found, but I'm not sure how to determine if it will fit before purchasing it. 33 SPLINE GM 9 1/2 INCH LOCKING DIFFERENTIAL. THE HOLE UNIT HAS LESS...
  2. R

    want to lower 74 C20

    I want to know how low I can drop my c20 without having to do a front disc brake conversion. I want to keep the drums for now, but from what I've read you cannot use drop spindles with drum brakes. Please give me your thoughts.

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