[zootjeff]

I know this has been discussed somewhat, but I'm still curious about other peoples experiences..

I have a 1st Gen Tundra which wasn't "really" designed for towing, if you read the user manual.. They don't really talk about how to use the Overdrive other then "Don't turn it off if you want to save gas".

So I have a 3500 pound travel trailer, and it tows it just fine. But my question kind of philosophical, should I use the over drive ever when towing?

Is it better for the tranny to never use overdrive? Or is it OK to tow in overdrive on a flat surface, slight decline, etc..

Basically I tow under the philosophy that I want the automatic transmission to shift when it's not under load, and if I'm coming to a hill, I typically will get it to shift right before the hill starts so that "I feel like" I'm putting the least load on the transmission. I also use the philosophy that I want the transmission to shift as little as possible.

My transmission has 120k miles on it and I want it to last as long as possible, so what kind of towing behaviors should I adopt? And how should I use/not use the overdrive disable switch?

-Jeff