I wouldn't expect that you would transfer all that CA emissions over to a 240D. Well that is true. That is why you would install an OD right, to lower RPM's while maintaining speed. Of course, with a properly working OD, you will be able to go back to the original gearing by manually or electrically eliminating the OD. It would really be a lot easier to install say 15" wheels and tires, but then you loose flexibility. I think it is hard to beat the original Mercedes driveline set. If you are putting the 617 Turbo into a 240D car, make sure you put the speedometer and the differential from the 300D into it also, if you want the speedometer to read correctly.

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Junqueyardjim
Christianity, if false, is of no importance, and if true, of infinite importance. The only thing it cannot be is moderately important. C.S. Lewis



1983 Mercedes W123 240D 4 Speed 285,000 on the road with a 617 turbo, beautiful butter yellow, license plate # 83 240D INDIANA

2003 Jaguar Type X, AWD. beautiful, good mileage,
Mom's car, but I won't let her drive it!