I just installed the Ram Powergrip HD clutch (PN 98730HD) in my 89 IROC and I thought I would report on it. This is appears to be a very well built, heavy duty unit as it should since Ram claims it will hold up behind a 700 HP engine! I previously had a Zoom multi friction unit. The Zoom was a nice setup with Kevlar on the flywheel side but was otherwise a step up from a stock unit. The Ram is heavier in every way. The clutch has a 8 puck iron and organic friction surface and the hub is heavier and seem all around beefier. The pressure plate has a thicker (+0.020") diaphragm with a thicker friction piece and heavier hardware etc. The set came with the throw out bearing and an allignment tool. (to add to my collection!) The clutch feel is not noticably harder than before but it does seem to have to be pushed in a bit farther than the Zoom unit. The friction point is a little low (just off the floor) but I'm sure I'll get used to it. I haven't pushed it hard yet as I only have about 75 miles on it but it seems to grab positively. Also, the advertisements in Summit and Jegs say you will get some clutch chatter with this unit but I haven't noticed any yet. I will update this later if I have any more info but as for now I definatly recommed it.

Just a follow up on this clutch. I've put about 500 miles on it and occasionally notice a bit of chatter. Not a problem. In regard to the pedal being low, I replaced the worn out plastic bushing that goes between the clutch pedal and the master cylinder rod with a custom aluminum bushing. Now the friction point is right where I like it. Goes into gear and shifts much better. Still a definate recommendation.