51 Ford Clutch Chatter

I'm back again, still wrestling with the clutch chatter in my 51 Ford Sedan. In my attempt to invest money in a solution rather than guess, I have only been doing research on the issue.

When the clutch is engaged at what I would describe as a normal RPM's, the chatter is so violent that it has to be doing damage to other components. When I increase the RPM's to say 2,000 plus or minus, there is no chatter and the car leaves like I just robbed a bank (just short of burning the tires)

It is powered by a hopped up 8ba gets to a 3.54 rear end going thru a "long" style pressure plate & 9-1/2" clutch.

Could it be that since the pressure plate generates more "squeeze" at higher RPM's and the clutch is as small as the make them, that say a 10-1/2" disk and a "diaphram" pressure plate might cure my chatter or high RPM take offs?

I would like to thank you in advance for any time you spend thinking about my issue.......Regards, Dave in SLC

 

flywheel needs surfaced

 

bring it to a shop with a Blanchard grinder, they leave a nice finish. then deglaze with a few scotch-brite p***es.

 

Check clutch finger height when ***embled; must be with in 1/32nd, no amount of flywheel resurfacing will compensate for uneven pressure plate engagement....Remove trans and measure from trans bell housing face to finger where throwout bearing touches it..If you have adjusting bolts you can adjust and use penetrating loc ***e to loc..If the fingers are solid you will have to shim at the fulcrum pivot clevis or creative welding/grinding..