CloudDriver wrote:
Our Class C is on the 2003 E450 chassis. I have changed the fluid twice myself in the driveway using this procedure. The maintenance schedule calls for fluid changes at 30,000 mile intervals. I went a bit over the interval the first two changes and have the fluid for the third change waiting for a decent day to do it again. Never dropped the pan and don't plan to do so this time either.
So far we have 95,000 miles with no transmission issues.
I used this procedure on my old 93 ford 4EOD tranny except I never dropped the pan, I pumped out old the fluid using a 1/4" plastic tube and hand pump. No need to do a filter change at 45,000 miles plus no pan dropping mess. I pumped out 7 quarts, then used the aforementioned method and pumped out another 7 from the torque converter, cooler and lines then with the engine off I pumped out another 2 quarts from the converter and lines with the hand pump. Thus removed a total of 16 quarts before wasting any new fluid. Refilled and wasted two quarts for further cleaning for good measure. All late and hard shifts and hard clucks into reverse completely disappeared. Used the synthetic dex merc blend.
