[77newell]

I should also note that the mechanical versions of this transmission, the HT-740 and HT-750, have heat flows identical to what I've noted above with the only difference being that the mechanical transmissions don't have the "check transmission" light trigger (as far as I know, it's been too long since I owned the 77 coach).

Finally, these are elegantly designed mechanical devices with a ton, almost literally, of moving parts with fluid flying all over the place at various pressures. Really amazing stuff.