CharlesinGA wrote:
Transmissions are expensive, fluid is relatively cheap, change it frequently and keep it cool with extra coolers and deep pans.
In our situation of a premature failure of our 5R110W 5-speed transmission ... we have a small Class C motorhome (~11,800 lbs.) riding on an E450 chassis (14,050 GVRW rated) that has a 4:56 rear differential ratio and not towing ... IMHO, this combination should have provided light enough weight loading and fast enough engine spin speeds such that excessive transmission heating should not have happened under just about any conditions using only the stock Ford transmission cooling and stock transmission pan.
I'm still scratching my head (and my wallet) on the failure we experenced! :h
