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  1. 1965 Mustang 8 inch to 9 inch rear end

    Classic Tech
    I am upgrading my 8 inch rear end to a 9 inch rear end in my 1965 mustang. I purchased the 9 inch housing from moser and the 3rd member rebuilt off of ebay. I am wondering if i will need to modify the length of my driveshaft when i install the 9 inch rear end? Thanks