Well I think it can be done without much difficulty so long as you can do it with the 190E at your side. It is just a case of pulling every part you need from the 190E to the 300E. To do the job right that would include switching the differental and the speedometer as they are matched. If you don't switch differentials, don't switch the speedometer. Drive shaft length might have to modified, transmission mounts ect. are probably different also. You should install a new pilot bearing and throwout bearing and to do the job really right resurface the pressure plate and put in a new disc, (some of the 190's are pretty expensive). Your master cylinder will most probably work - it has a tit on the back corner that will have to be opened up to let the fluid pass. Change over the whole pedal box and change over the whole shifter assembly. Often shift levers must be changed in length - however if both engines sit the same distance away from the firewall then I would think the shift rods will be correct length. THE BIG THING! Hold on to the parts car until you are all finished.

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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!