I have a question that relates to this old Thread so I will ask it here rather than start a new one. I am on my third clutch rebuild in 3 years and hope someone has a pontiac set-up similar to mine that may have some answers. 68 bird,modified 455 , Muncie 4 spd, I had a cheapo RAM clutch from Ames first go and it worked OK. had major engine problem second year (long story) and thought while I was at it, why not upgrade to a Centerforce Dual friction that everyone seems to rave about? Guess I did not have it set up right, or broken in properly, "abused it" or whatever, but now it is toast. Centerforce tech help says even their 550 ft/lb rated DF clutch will not be ideal for my set up (big torque,muncie & crappy rear gear- 3.08).
I also found this video on you tube that makes me think I should get a new flywheel (centerforce 700600?) as well. http://www.youtube.com/watch?v=KeqzZniVmrM&feature=related
I have a 547975 BOP bellhousing, an unknown clutch fork with no numbers on it, that looks correct. the catalogs say to use the short 1716 centerforce throwout brg. I found that by the time I adjusted the clutch push rod enough to engage gears (especially reverse) that I had no free play. which causes premature wear and slipping... I checked the clutch pivot ball distance which is important (4.75"). freeplay is critical for all clutches but especially with a CF and those little weights. this thread says I need the long throwout bearing... has anybody used the Centerforce dual friction clutch and what throwout brg did you use? and what is the correct clutch fork for our cars and where can I get one?and opinions on new flywheels would also be gratefully acepted..