So I went through and inventoried all my parts for the 5.3 going in... and I'm missing the alt mounting bolts. Anyone know the size? I see no point in putting in an order to GMPartsHouse for a pair of bolts when I can pick them up from the hardware store, I just need the size. Thanks!
99% sure they're M10s, anyone know the length?
FWIW, hardware store bolts usually have a 17mm head on a 10mm bolt vs the 15mm head on a GM bolt that has the washer built onto it. They're not really expensive at the GM house and you don't have to go from store to store to find one the right length.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
measure across your mount and add about 3/4" for a nut on the backside.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
I have measure it for you: 3''7/8 under head length or 95mm but the last 1/4 is not threaded.
Sorry for my bad English I'm french!
Thank you kindly!Originally Posted by bobbylog
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