Towing and overdrive (1 Viewer)

[Redshift]

Just a quick question. I have a 6 speed FJ and am planning on getting a tent trailer. The manual says don't tow in overdrive. If you are traveling at freeway speeds does that really hurt the drivetrain to use overdrive?

 

[saskdiesel]

You will probably get better milage in 5th.
The OD gear is smaller than the preceding gear in any transmission so there is a lot of pressure on those few teeth.