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billnorman · 05-23-2010, 05:59 AM

If you bent the clutch disc when installing, have rust or a groove on the tranny input shaft, have a bad pilot bearing, have a dragging centerspring on the disc, have a bad pressure plate, or have the adjustment wrong, of course, you'll not disengage properly. If the truck won't move in gear, the hub must be out of the clutch disc. Either that or the pressure plate is depressed, perhaps the TO brg is caught on the trans input shaft. Did you have any trouble installing the tranny, like, it didn't wanna go in? Is the bell housing too deep? I haven't had a stick Chev for so long, the last one I had had an 11 inch clutch. I once used a GMC truck clutch on a Pontiac 389 IN A '56 CHEV I slapped together, and it used a 12 incher. Wish I could be helpful, but I lack experience in this diesel engine arena.

05-23-2010, 05:59 AM	#4
billnorman Registered User Join Date: Mar 2009 Location: glen burnie md Posts: 174	Re: Clutch not disengaging properly If you bent the clutch disc when installing, have rust or a groove on the tranny input shaft, have a bad pilot bearing, have a dragging centerspring on the disc, have a bad pressure plate, or have the adjustment wrong, of course, you'll not disengage properly. If the truck won't move in gear, the hub must be out of the clutch disc. Either that or the pressure plate is depressed, perhaps the TO brg is caught on the trans input shaft. Did you have any trouble installing the tranny, like, it didn't wanna go in? Is the bell housing too deep? I haven't had a stick Chev for so long, the last one I had had an 11 inch clutch. I once used a GMC truck clutch on a Pontiac 389 IN A '56 CHEV I slapped together, and it used a 12 incher. Wish I could be helpful, but I lack experience in this diesel engine arena.