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Herr Doktor-
Your information on the W116 300SD is always helpful.
I have a a 722.120 on my bench at this moment awaiting its chance to go back in my 80 300SD. I bought the car from California months ago with a known bad tranny. It turned out to be a bad front pump- the torque converter fingers had sheared off (cause or effect?). Anyway, I have swapped in a good pump and torque converter from a 722.112 off a 280SE. I have not attempted to rebuild the transmission as it was working properly before and only has 125K miles on it.
But someday I may rebuild it. You seem to have a great familiarity with theses 4-bolt trannys. Are the internals of the 722.112 (also 4 speed) identical to the 722.120? Is it just the valve body that is different? Are there any "special"tools needed in a full rebuild of a 722.1xx? I have rebuilt a Ford C-4 so I am not completely terrified of the task.
Rick
Deltona, FL
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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 (??)
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