Discussion Starter · #1 ·
I am thinking of replacing my 03 F-250 with a F-350 dually. My new fifth wheel seems just a little to heavy for my F-250. The 373 gears seem to pull even in mountains ok but with the tow boss option it seems you would be really turning some high rpms at 60-65 mph. Can anybody with the tow boss tell me what rpms you are turning at freeway speeds.