I am ready to install my clutch while doing a 3 spd to 4 spd conversion. Does any one know the correct pressure plate bolt size??? The bolts from the 3 spd are of different lengths but the do thread in a little bit then tighten up rapidly. I'm concerned because the 3pd pressure plate is thicker. ACE is still open and I can go get grade 8.8 bolts now. Thanks