Well -- we swapped the slim throw-out bearing for a fat one and all of a sudden I could shift. Then, while up on jackstands I ran thru the gears, all nominal. Finally we decided to run a test- and- check around the block and see how well it ran. . . .
I got 6 feet in reverse and it popped. Something was not clutching any more. Best guess is the cast iron clutch fork popped off the pivot ball. I have a Mr. Gasket adjustable pivot but it looks kinda sketchy, except it has a flat backsurface which might trap the clutch fork retaining clip better.
Lots of foot pressure need to activate clutch before it went out. Twice what would be necessary. Can't get back to project til end of next week due to work committments.
I/I #4101
'71 GMC Jimmy 350, sm465, np205,3.73 posi.
'68 C/10 Stepside 292 (.030 over) Offy Intake, 500 CFM AFB,Clif headers, sm465, 3.73 posi.
'67 K/10 454 project.
'72 K/5 rolling frame project.
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