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...
Allen
You are making the right move going to the SXE. We put an SXE in my father in law's dually with 4.10 (stock tires...not sure what 295 tire you are running) and he followed me to Colorado this year towing his 13K toy hauler. He did everything in 4th gear with EGTs at 1100 degrees in a 40HP...
I know of 3 folks that dont run the bracket on the back of the Y and regularly Boost over 30 and 40 pounds.
I found it easiest to leave the bracket off until the Y is in then install the bracket.