I'd like to consider reducing the revs in my non turbo 300TD. Would a 3.46 to 2.88 be too extreme? I looked in the archives but I didn't find anyone trying this exact swap. Right now I'm getting about 25 mpg on the highway and don't want to kill the fuel mileage by over taxing the motor.

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Bill Reimels
Now down to one:
1972 300SE 3.5 W109 (Euro delivery)