The clutch is a borg&beck style 10.95" RAM Powergrip HD:
Powergrip HD Clutch Sets Archives - RAM Clutches
Everything they say in the description is true lol:
“strip/street” competition clutch system that can handle the rigors of weekend racing and spirited street driving. This system has the same components as standard POWERGRIP above with the exception that the disc friction surfaces are both sintered metallic. Sintered metallic provides a degree of slippage on vehicle launch to prevent the violent and uncontrollable engagement characteristics of paddle type metallic discs. This firm consistent engagement is easy to control. Some chatter is likely on engagement with rear gearing less than 3.73 in street applications. Each set includes the pressure plate, clutch disc, release bearing, and alignment tool unless otherwise noted. Use Powergrip HD for power levels to 650 horsepower, or lower powered vehicles that see frequent track duty."
The bell is a Quicktime 6073. If you use this a) the factory bb z bar pivots work and b) it needs a few modifications as follows 1) the clutch fork pivot folds up and 2) nuts should be welded to the back side of the pivot bracket to aide in keeping your sanity upon assembly.
Also verify the holes on the bell match the holes in the supplied block saver plate. DAMHIK on that and the pivot fork bracket.
Rear diff is the original 8.75, 742 housing with 3.23 gears. I added .100 to the clutch pack when I rebuilt the sure grip unit. A Dana 60 will replace it when the 499" deal goes in.
Any other q's feel free to ask. I love sharing and chopping up build plans and other gearhead data.
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