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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: s75chevys on November 30, 2007, 01:25:18 am
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i have a 75 c10 an it has a 350 and i looked up the vin and it said it had a 454 originally and than i looked at my rear end and its a 12 bolt?... soo did they originally have a 12 bolt because a lot of people i talk to have the 10 bolt and its makeing me wonder.. is it orginal and if so what gears were in them all i know is i need to pull them out and redo them but wondering everything i can about my baby!
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Yes the 75 C10 came with a 12bolt. Your gear ratio is particular to your truck. Best way to be certain is to pop the meatball cover off.