stock GM size is 3/8 and 5/16" but if I were you I'd ask them to make them out of 1/2" and 3/8" or 7/16" instead of 3/8". 3/8" would be easiest to find fittings for. Go oversized if you plan on adding power adders in the future.
stock GM size is 3/8 and 5/16" but if I were you I'd ask them to make them out of 1/2" and 3/8" or 7/16" instead of 3/8". 3/8" would be easiest to find fittings for. Go oversized if you plan on adding power adders in the future.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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