Hi, I have a 1980 300sd (w116) that I just pulled the transmission out of, and as I was informed from this forum, the front pump was sheared, so now I need a replacement. After hunting high and low , I got a lead about a 722 trans from a w123 body style 1985 300d , would this work ? and if not, are there any other options for alternate transmissions that would suffice or improve the drive-ability ??? thanks !