95 YJ 5sp 2.5l cracked transmission case - JeepForum.com
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Unread 10-23-2011, 06:55 PM   #1
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1995 YJ Wrangler 
Join Date: Feb 2011
Location: miami, fl
Posts: 24
95 YJ 5sp 2.5l cracked transmission case

I had a leak where the transmission meets up with transfer case. i noticed what appears to be a hairline crack on the back of the transmission pretty close to where the transmission mount area is. A slight amount of gear oil is seaping out. should i try jb weld or should i find a mechanic to weld it?...do these things crack often?? and is the welding option expensive?

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Unread 10-24-2011, 11:05 AM   #2
Brown Dog
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1991 YJ Wrangler 
Join Date: Nov 2005
Location: Queen Creek, Arizona
Posts: 3,549
You need to find someone in the aircraft or marine welding business. Someone who really knows how to deal with cast aluminum. Welding those is pretty tricky, but can be done by the right person. Cost? No idea.

JB Weld? You would have to get it REAL clean and not have any seepage during the repair. That might be difficult.
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Unread 10-24-2011, 11:40 AM   #3
XJ on 37's
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1998 XJ Cherokee 
Join Date: Jul 2006
Location: missouri via blackpool,lancs.
Posts: 10,625
Either way, you are going to have to remove it.
If you try the JB Weld option, make sure it is clean, dry and sanded down. Also be sure that all motor transmission mounts are in tip top shape.
I would try to call around your area and see who can weld cast aluminum before though, as well as maybe trying to find one to replace it with.
Just search for AX5 tail housing etc.
Be a good time to upgrade to a set of the above posters mounts IMHO.
And no, they are not known from cracking there as a rule.

1998 XJ on 37's.JK Rubi axles with chromo shafts and ctm's, 4:1 transfer case, etc etc etc.
2003 Range Rover HSE, 4.4 Quad Cam.
1998 Range Rover with a 6.0 LSx
1994 YJ, 4.3/700R4/OME SOA, etc
Western Star 4900EX 4 axle.
4.3/700r4/new frame buildup (YJ)....
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