W126, Manuals by Kent Bergsma

Now to both determine the internal health and to prolong the life of these old transmissions. Full video instructions included. 50 psi limit. This will NOT test full 190 psi supply pressure. Bonus speed adjustment video included

Have a big fluid leak coming out of the front? It won't just be the seal. There is a BIG hidden o-ring at the edge of the pump.

For oil pan plugs 1977 to 1985 Diesels in W123, W116 and W126 chassis passenger cars up through 1985.