For two years I ran a T5 behind my 350 with a 10" clutch. The pedal is original (1957), and the clutch arm (to TO bearing) and clutch linkage offset arm are correct to the engine (1970). The whole clutch kit was new, and the flywheel was resurfaced, but when starting from a dead stop in first gear the clutch chattered violently. It never gave any trouble in any other gear, and if I started from a dead stop in second, it didn't bother. I have changed to an MY6 transmission using a new 11" clutch disc (the flywheel is tapped for both size pressure plates), and the violent chattering continues--only starting from a dead stop, but it bothers a little in reverse now. I am using the same TO bearing as for the T5, but in my hand it spins smooth as silk. In the clutch arm there are two holes near the outboard end, suggesting the option to insert the offset linkage arm into either hole, with action and feel differing according to which hole you choose. I am using the hole furthest from the TO bearing. The 1957 shop manual shows the clutch linkage arranged so that when the pedal is pushed, the clutch arm is pushed back, but the way the offset arm is attached, when I push the pedal the clutch arm is pulled back. It doesn't seem to make any difference how the clutch is adjusted. What's my problem ? BTW, in 50 yrs of driving I have never owned an automatic, nor ever needed to replace a clutch from wear or damage.
