[MrMagoo]

NorCal, it seems totally obvious to me what your problem is. Yes, just leaving the slave dangling in the bellhousing is really sloppy stuff, and yes, this setup will ultimately fail. However, note that you did not have clutch chatter. Now you mounted the slave to the frame, and guess what? Your slave isn't going to fall out of the car, but you have clutch chatter. Jay at Vintage Motorsport (A northeast Backdraft dealer) sold me a bracket that attached to the engine mounts. The engine mounts MOVE WITH THE MOTOR since they sit on a big rubber bushing*that absorbs the torque of the motor. When you start in 1st gear, it's all torque, and the motor moves a lot, changing the alignment of your frame mounted slave to the clutch fork, resulting in chatter.

I too was convinced that I had some kind of driveshaft alignment or clutch installation problem, and I would not believe the solution was this easy, but it was.

Call Jay or send him an email, and see if he will sell you one of his fabricated slave brackets. Maybe your local Backdraft dealer will do the same.

The installation is easy-breezy.