So yesterday my 722.4 trans decided to start exhibiting really odd behaviors. It would start up-shifting almost immediately upon off-idle throttle, so that it was already in third by the time I reached 20mph--drove like a dog. I had been planning on driving it down to Salem today, but ended up taking the gf's Audi. I know I might be able to diagnose the problem, though I've checked the kickdown cable and fluid levels, but nothing seems obvious. I have a 722.3 trans from an '87 300TD I recently stripped. It came with documentation showing that it was an MB factory rebuild about 60k ago, so I'm going to swap it in there. I think I'll just use the forward portion of the six cylinder driveshaft, since the two transmissions are physically different lengths. I guess I'll use the 722.3 torque converter too, but I've heard the later 722.4 trans have a different stall speed. I'll take pics and document my journey over the weekend.