BigDaveZJ
09-14-2004, 10:51 PM
I was under the heep trying to figure out why the driveline vibes were so bad last night and found the rear output on the t-case was able to move up and down a little. I thought WTF, that ain't right! So tonight I started tearing apart the case. I was thinking the rear output bearing was toast, so I had one from an old 231 ready to put in. Pulled the tailcone off and I noticed I could push and pull on the mainshaft and it would move about 1/2" in and out. If I pulled it all the way out and jiggled it up and down I could walk the output bearing a considerable ways out of its race.
Here's a few pics of the different positions:
This is the bearing out as far as I could get it
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20001.jpg
Shaft pulled out all the way, bearing came a little ways out
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20003.jpg
Just the shaft pulled out
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20004.jpg
Everything all nice and snug the way it SHOULD be
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20006.jpg
From what I can tell I could just be missing a snap ring somewhere, need to pull the rest of the case to find out. I planned on rebuilding here once the snow hit the hills, but may have to bump that up a little bit. I've had this case in for the last 15-20k miles maybe, always made a weird noise, think I may have finally figured it out! If this is the source of that noise though, I'm very amazed that it held up this long.
Here's a few pics of the different positions:
This is the bearing out as far as I could get it
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20001.jpg
Shaft pulled out all the way, bearing came a little ways out
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20003.jpg
Just the shaft pulled out
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20004.jpg
Everything all nice and snug the way it SHOULD be
http://www.mallcrawlin.com/wheelinpics/231mainshaft/231mainshaft%20006.jpg
From what I can tell I could just be missing a snap ring somewhere, need to pull the rest of the case to find out. I planned on rebuilding here once the snow hit the hills, but may have to bump that up a little bit. I've had this case in for the last 15-20k miles maybe, always made a weird noise, think I may have finally figured it out! If this is the source of that noise though, I'm very amazed that it held up this long.