I usually dont post in this forum as i have an E30 318is... BUT a friend of mine is looking at a 1988 535i. The particular car he's looking at needs a new transmission and he wanted to know which transmissions would fit on that car (if there are more than one). It doesn't reall matter if the new transmission is automatic or manual, but he would prefer that the car be manual. Also, if anyone has done a automatic to manual swith on their 5 series more information would be appreciated.