I have a obd0 block built and im running a CC Twin disk and ia throw out and pilot bearing i got from CC. The pilot bearing sits flush on the flywheel but has play on the crank? My last setup it sat flush on both flywheel n crank but was a obd1 gsr block. Any different in Crank? It goes in but has play all around like th bearing is small and the crank hole is bigger. Any input thanks