KATROL's Hot box

[Bigrig]

Towed a trailer the other week, with no more than a tonne of stuff. Gearbox got that hot that it felt like heater was on full bore in cabin. She's been to the doctor's and they cant find anything wrong.
Should I get a second opinion? Or do the GU's get warm when towing?
Katrol needs to be a tow bus, so has to be right.
PS How do I unsubscribe to a thread?
Kat

If it is an auto, then they get bloody hot. Mine is the same in the GQ - feels like you actually have the heater on. That said, obviously don't know how hot yours is running, so get a second opinion for peace of mind I guess - I did just to be sure.