Thor Motorhome Transmission add ons
I own a 2002 Thor Four Winds motorhome on the Ford E450 chassis. It has the v10 gasoline engine and the 4r100 transmission. My motorhome is in great shape with only 38,000 miles on it. I am a mechani...
Forum Discussion
Sounds like you're talking about a Gear vendors Under/Overdrive unit. They were really popular back in the 80's when we only had 3 speed transmissions because they basically doubled the amount of gears available. Link to Gear vendors Looks like they are 3,000-5,000 plus installation.
I believe in transmission cooling, but would say it depends. Does the motorhome have a transmission temp gauge? Is it having a heat problem now?
