I have had a constant leak from the 2800's Speedo drive, found a tiny bushing that fits inside the drive housing, 24 21 1 200 139, looks to be the same for the ZF automatic. This is not the large square o-ring for outside of housing. Tough to remove the old one, there is a hole on the side of the housing to drill out and weaken the old bushing then you can pry it out.
Getrag uses a different arrangement.
Getrag uses a different arrangement.
