I've got a stock injector truck (SXE turbo) with 3.73s and 35s.
In third gear at 61 MPH Im turning 2200 RPMs. POWER and EGTS are GREAT.
If I shift to 4th, RPMs fall to 1750 and about 68 MPH. IMHO this is to fast of speed for what I feel comfortable towing at. But the truck will do it and pull...