Ive been having trouble with my clutch not completely disengaging when the pedal is depressed. I have replaced, bled and re-bled the slave cylender and master cylender. Im only feeling pressure on the pedal in the lower half of the clutch pedal throw. Im wondering if the prob is in the clutch itself. Tonight I compared the clutch fork position with that of my brothers 89 manual chevy (same BH and hydrolics) that works wonderfully. His clutch fork is 5/8" closer to the slave cyl than mine at rest and has twice as much range of movement, from clutch disc engaged to disengaged, as my clutch fork does. The range of movement on my clutch fork is a total of 1/2" and this does not completely disengage the clutch.
The position of my clutch fork at rest is at the rear of the inspection hole on the BH while my brother's is more twards the front half of the inspection hole. Can anyone compare this to their truck's clutch fork at rest and the total range of movement of their clutch fork? It would take two min and a 15mm wrench. Im having a hard time deciding if the prob is the hydrolics or the clutch itself. Thanks, matt

Ok Ill have to answer this myself. I finally got pissed off enough to drop the tranny yesterday. It wasnt as heavy as I'd heard people complain about. way lighter than a SM465. Those people must be used to working on hondas or something.
Anyway I found that I have a solid flywheel and the clutch/ Pressure plate looks good. The outer row of springs on the disc were loose in their seats but Im not sure if that means anything. Ill have to get the new clutch to compare it to. And, what Im hoping was the prob was the ball pivot stud and the clutch lever were worn so bad from lack of grease(I guess) that they worn grooves that limited the movement of the lever and the throwout bearing. Oh, and the front bearing retainer snout was in great shape.

So If your clutch wont release there is a possibility that the ball stud and clutch lever are worn out on your external slave truck. matt

look under the dash at where your clutch master cylinder hooks to the peddle and there is a plastic insert on the peddle shaft......mine got broken and my clutch wouldn't let loose....had to jam it into to gear!!!.....new $1.50 piece from stealer ship and all was good!

It was new along with the master cyl and slave cyl matt