evilunclegrimace
Does not always play well with others
From what i understand the calipers with the 75mm pistons(1/2 ton) are the low drag type and the 80 mm and 85 mm (3/4 and 1 ton) are conventional type. Not sure about the booster will they let you test fit it at he store or will a JB6 booster fit in your truck?
The booster will fit! There are more than two calipers for the 1/2 and 3/4 ton trucks . You must know which system the truck has to determine the caliper piston size, then you might be able to determine if the calipers are low drag or not.