i went to jenning chevy dealer on saturday to buy an alternator for my swap. the parts guy told me he need the vin # off the truck i told him i don't have it cuz i bought the motor for the swap and have no idea or how to get the vin #. he said he can't help me then, that's BS!! i don't see what's the problem and why i need the vin #. i told him the year of the truck it came off and what motor size and he still won't help me. anybody work for a chevy dealer can hook me up? i don't want to buy a remanufacture one from auto zone.