I have a 1965 348 rebuilt engine in a 1957 Chevy 3/4 to truck (NAPCO). I installed a CenterForce Clutch and pressure plate appropriate for the engine. I also have the long throwout bearing. The clutch fork is the cast type. The problem is that the transmission will not go into gear (engine running). It appears the clutch is not engaging all the way. All the measurements and fork angle seem correct according to the CenterForce spec. sheet. When I try to compensate the fork linkage to get increase throw-out bearing travel, I either break or lose the pivot pin holding the fork to the pivot ball.
Measuring, the Centerforce assembly is about an inch shorter that the stock one that is on my 283 which was originally in the truck and worked fine. I'm wondering if the Centerforce pressure plate/clutch assembly is just wrong for the truck application (bell-housing and forged fork). Any opinions before I do another un-install would be much appreciated.
Thanks,
don
