Clutch Grinding

The clutch grinds on my 1969 Dart 340, 4 Speed, when I fully depress the clutch toward the floor. I recently installed a McLeod Borg and Beck Pressure Plate. I believe that I have the clutch adjusted properly with 5/32” slack at the fork and 1” at the pedal. Has anybody else ever encountered this problem?

I have gone through all the components. The Bell Housing is 2892…482…70. I believe this is the correct bellhousing, even though it may be from a 1970 E Body. I have bought a new Clutch Fork (12 1/2” overall length), Fork Pivot, Clutch Linkage and a Z Bar.

I am attaching a couple of pictures of the larger Fork Pivot that I installed (measures 1 3/16” between the upright portion with the slot and the center of the bolt holes) and a smaller Fork Pivot (measures 5/8”). It appears that the larger Fork Pivot is correct, but it is odd that the smaller Fork Pivot was on all three 482 Bell Housings that have.

Any thoughts on whether these parts are all correct?

I have also attached a picture of my Throw Out Bearing. It looks like this after only about 10 seconds of grinding. It has no miles on it because I only ran my engine 30 minutes to break it in. I wonder if something is wrong with the Clutch Linkage/Throw Out Bearing/Pressure Plate geometry that could be the problem.

Thank you for any advice.

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