1986 420 SEL rear tranny seal replacement

n/a

Can someone give me some info on what a reasonable cost would be to replace the leaking rear seal on the transmission of this car. I understand that the tranny must be removed so it is not something I can tackle myself. Plus, there are specialized tools etc. required to do the job correctly.

The car is a dream to drive and otherwise is in mint condition. Only 136,000 original miles. What other items might it be wise to replace now while the tranny is down? Car shifts through gears so smoothly that it's almost impossible to detect the transitions, so all major parts must be in good working order. I enjoy working on these cars and do most repairs myself. I also own a 1995 300 SD Turbo diesel. Tranny work is a little out of my league, and I want the work done right. Any suggestions would be appreciated.

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