There is a shinny spot on the throw out fork with a corresponding rub on the pressure plate. Maybe Central Coaster would have an answer ?
My own guess is miss adjustment, impact with an impenetrable object, or hydraulic failure.

Received my 6 speed today and that is about all I could see wrong with it.

Thanks for the expert advice in advance.

Been there done that, ball stud working its way out, or stack up issues?

what sayeth CC

I guess that would be under the adjustment heading. As I understand you the ball studs have a tendancy to walk ?

Is this on used parts you just bought? Or ones you removed from your car? What year car did the parts come out of, or do you have an ebay ad or something you can show us?

I have no issues with rubbing on my 85 with the LT1 bellhousing, fork, stud, disc, hydraulics and the ZR1 pressure plate, and Kragen flywheel. My replacement flywheel did measure thinner than the original ~1", something like .975" because it's reman. If you've got your parts on the garage floor, lay the flywheel friction side down and measure the distance to the crank surface.

Although at the last track event it seemed to soften up or get air in it somehow so I'm going to rebleed it.

The parts are used. They are the parts I am going to use for the conversion. I just noticed a rub mark on the PP and a rub mark on the fork. I can not think of why they would hit unless the fork was pivoting to close to the Pressure plate. The fork needs to move more toward the transmission?

The clutch disk still has the part # on the clutch disk friction surface.

Just ordered the flywheel.

O yeah Liked your video

Most likely from a loose pivot stud or a stretched throwout bearing on the previous owner's car. Or he tried doing the swap with the wrong parts combination, like everyone else has at some point, including me.

When you get the clutch in place, try sticking the alignment tool in there and pushing the clutch to the floor.... and maybe even bump the starter, see if you get any rubbing. Because god knows the guarantee on my advice is about as much as you paid for it. But it's working perfectly.

I presume you've got the ZR1-specific pressure plate?

Yes, all parts are from a late Corvette. Still trying to figure why there is so little wear on the clutch disk. Maybe someone changed the clutch, miss adjusted, and got rid of it for the scraping noise. Would like to know the history but it wouldn't change anything.

Ok, well if you got all the parts from the same vette, then you still need a zr1 p/p.

I guess this has a different bolt pattern than the 85 flywheel?

Bolt pattern is the same.

But the Zr1 pressure plate is thicker than the lt1 pressure plate. You can run it with the LT1 plate, but the clutch pedal will engage higher and you will get a little more clutch slippage if you race it.

Thank you for all the help. I could not figure why every thing in the clutch area looked recent. I did find that the TOB is the wrong one it is for a Black Tag. Probably the reason for the clutch fork strike and maybe the reason for the whole change.

Just measured things and found the TOB is probably correct but is missing the nylon sleeve.

Does not seem that anyone has the TOB.

They are out there, you just have to call and ask around, do you have a Black or Blue tag?

94 - 96 TOB
http://www.ecklers.com/product.asp?pf ... es+-+Hardware-_-50583-_-X

89-93 TOB
http://www.ecklers.com/product.asp?pf ... iveline+-+ALL-_-26482-_-X

Blue Tag, 94-96. Out of stock at ecklers. Bought a hole kit.

I was going to do this in July but I think that I will start this week end.
One more question for planning. Can I set this all up on the back of the engin(BH,FW Clutch Assy.) and then lower engine and all into car and slide it over the transmission input shaft or do I have to assemble it all from under the car?

I did experience the pivot ball backing out costing me a clutch at 35K. But the rubbing on the pressure plate came later. Discovered grooves worn into pivot ball from the clutch fork.

I will locktite the pivot ball when I think I have it set up as best as possible.