I'm going from Gainesville FL to Crystal River FL which is around 72 miles and I'll be towing a boat. The boat is a 17 ft Century center console with a 90hp 2 cylce engine and the hull is composite with a fiberglass cap. Does anyone think it would harm my transmission if I pulled the boat without allowing my truck to go into overdrive? It pulls it fine at 60 mph in overdrive but when I get up to 65 it doesn't seem to have the grunt to keep it there in overdrive with my 3.23 gear ratio.

 

Converter locks up in 3rd.. why would it mess anything up?
boat/trailer weighs what, 2500#max?

 

I don't know that's why I asked. I didn't think it would mess anything but I figured I would ask to be safe. My truck in 3rd gear going 65 only runs about 1600 rpm's anyway.

 

Do you have a temp guage for your tranny, if you don't get one. I would not even sweat it regarding the 60e towing that boat. Just remember if it has a 100 gallon tank thats 800# extra weight towing and stopping wise.

 

I burned my 3-4 clutch in my 60e towing in overdrive, some say its ok some dont, my tranny guy knows his stuff and he said never do it