Tow Hubs

I sure think so. On a 3/4 speed, there is absolutely nothing turning in the trans except the mainshaft, which is turning inside all the gears as well as the needles in the rear of the input shaft. There is absolutely nothing in there to splash oil around, or circulate it to relieve heat.

I'm no expert (yet) on Torqueflites, but it seems to me they are in the same boat. On either a stick and ESPECIALLY and auto, the oil is sitting in the bottom of the pan, doing nothing. There's nothing to pump oil, nothing moving except the mainshaft and what's being driven by it

You can't see the damage you've done in those 60 mile tows at 55 mph. For all we all know, you might have taken thousands of good miles of wear out of the transmission.

You won't be doing that with my car, if I have any say in the matter.