Both of the axle seals on the Getrag in my 88 Mera have been leaking for a while and new seals did nothing to fix the problem
I found an axle bearing stabilizer kit for the TH125 automatic transmission that I adapted to work on both sides of the Getrag 5 speed. The kits have a roller bearing in the carrier and a sleeve that presses on the axle axle shaft with red loctite . The bearing carrier is sealed to the case with an O ring. Part numbers for the kit are 8643931 or K75125.
I ground 3 grooves in the passenger side bearing carrier to match the 3 tapped holes in the transmission around the seal and used 3 socket head button screws to hold it in.
On the drivers side I had to grind 2 areas in the bearing carrier to clear the raised tabs on the transmission and used both retainers that come in the kit to make a retainer that bolts to the single tapped hole in the transmission above the axle to hold it in.
So far no more oil under the transmission, hope it works long term.
I bought the kits on ebay.
http://www.ebay.com/itm/GM-...AOSw37tWBu7R&vxp=mtr