markmakeitso
20+ Year Contributor
- 366
- 0
- Aug 21, 2002
-
Mankato_MN
Hello all,
Short story, grenaded center diff in my 91 MT AWD, trying to disassemble. Intermediate cover is off, transfer case is off, differential output gear and passenger side gear are out, as are pinion shaft and pinion gears. The center shaft (that protrudes to lock into t-case won't slip out towards the engine side, it slides about 3/4" then locks pretty solid. A tap on the bellhousing side frees it up to slide back towards the 5th gear side. In the center between 2 extremes it rotates freely, and when it locks it doesn't feel like splines engaging, more like a tapered fit locking up. I can work on getting some pictures if necessary.
There doesn't seem to be a good way for the center shaft to bind up like that, just the slight shoulder up into which the splines at the transmission cap ends are cut.
Attached are 2 diagrams from the factory service manual. Not sure why it's locked up in there to be honest, all the other times I've had ocenter shafts in or out they've come free with a tap once the check ball was removed. Could the center shaft or output shaft be bent, causing binding when attempting to slide it out? Anyone else had this happen when the center diff lets go?
Thanks for any help,
Mark
edit: added pictures, whoops.
Short story, grenaded center diff in my 91 MT AWD, trying to disassemble. Intermediate cover is off, transfer case is off, differential output gear and passenger side gear are out, as are pinion shaft and pinion gears. The center shaft (that protrudes to lock into t-case won't slip out towards the engine side, it slides about 3/4" then locks pretty solid. A tap on the bellhousing side frees it up to slide back towards the 5th gear side. In the center between 2 extremes it rotates freely, and when it locks it doesn't feel like splines engaging, more like a tapered fit locking up. I can work on getting some pictures if necessary.
There doesn't seem to be a good way for the center shaft to bind up like that, just the slight shoulder up into which the splines at the transmission cap ends are cut.
Attached are 2 diagrams from the factory service manual. Not sure why it's locked up in there to be honest, all the other times I've had ocenter shafts in or out they've come free with a tap once the check ball was removed. Could the center shaft or output shaft be bent, causing binding when attempting to slide it out? Anyone else had this happen when the center diff lets go?
Thanks for any help,
Mark
edit: added pictures, whoops.