I have a 1987 gmc 6000 topkick, I have at a shop they are telling me I need all four rotors because they are under discard limit. I need to know what the actual spec is for these rotors, I had them replaced two year ago, the truck has 4 wheel disc, 427ci engine with manual trans, thank you
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Friday, September 7th, 2007 AT 3:12 AM