diesel don,

First, there are two different ratio 4 speed transmissions. We have the higher first gear one in a 300DT with a 3.07 rear end and it's a little reluctant to start moving on a very steep hill. I have the lower ratio in my 240D/300 with a 3.07 rear end ratio and can out accelerate the turbo in first gear. I can also start much easier on a steep hill.

Do not, and I mean do not put the 2.88 rear end in as you'll won't like the results. Your highway mileage will be great but it gets very breathless on hills. I walked a freind through installing a manual 4 speed in his '85 wagon and the results are as above. By the way, the friend was 71 at the time and had his broken leg in a plaster cast. Some people just won't quit!

Ideally, the best rear end for such a conversion would be the 3.27 out of a 124, but I'm told the swap won't work. With the 3.27 you'd get great off the mark movement.

Check the Haynes 280CE where you'll find all the ratios for trannies , five speed included.

Ben

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