And if your current pin is the plastic variety, odds are 10:1 that you will break it when removing the modulator.

There is a metal clip with two bolts that hold the modulator in. The modulator will come out once the clip an bolts are out. It fits in tight so it won't just fall out. And the area that all this takes place it in a bout 3" of space.

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Is this pin what anchors the modulator to the case? What years did this start?

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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.

No. It is essentially a "push rod" that transmits the pressure of the modulator. Some models have a metal rod, some plastic. The plastic one will snap if the modulator is not pulled precisely straight out of its recess. If your modulator is green, you probably have a plastic pin.

Got it! Thanks for the info everyone! I have a great respect for automatic transmissions in that I don't want to screw one up!!

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My Truck.. 2007 DODGE, 5.9 Cummins, 6spd stick, 4X4. My car..1977 240D, OTHER WHEELS...1955 VW Oval window bug, European Delivery (Holland) with a 1700cc, 2 barrel, Porsche drum brakes. 1939 WILLYS Pick-up. 1967 Triumph 200cc Tiger Cub. 1976 Honda 550F 4cyl Motor Cycle.

Replacing the trans modulator was one of my very first endeavors in working on my old MB. As stated before, it's very tight in there. Although I think I did as well as I am capable, I stripped the head on one of the bolts and the project went from aggravating to totally frustrating. I was advised that lowering the transmission would not work (although later another member of this forum said it would). At any rate I eventually used a small hole saw and cut through the tunnel and had easy access. Did a good patch job after replacing the modulator and all is well. Since my car is more of a daily driver than a showcar, this seems to me a reasonalble fix.

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John Schroader
bio burnin' 83 300D, '83 300 SD, '79 240D
"I've never met a man who was good at making excuses who was good at anything else" Ben Franklin
"You cannot permanently help a man by doing for him what he could and should do for himself" Abraham Lincoln