How "busted" is it? I suspect that there an astonishing numer of "busted" MB transmissions have been replaced for no good reason by mechanics who didn't take the time to understand them. Of course, if yours has 300K on it, it probably doesn't have a lot of friction material life left.

Rick

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80 300SD (129k mi) 82 240D stick (193k mi)77 240D auto - stick to be (153k mi) 85 380SL (145k mi) 89 BMW 535i 82 Diesel Rabbit Pickup (374k mi) 91 Jetta IDI Diesel (155k mi) 81 VW Rabbit Convertible Diesel 70 Triumph Spitfire Mk III (63kmi)66 Triumph TR4a IRS (90k mi)67 Ford F-100 (??)