I have a 2004 dodge CTD with 3.73 rear end when i tow my 5ver in tow haul mode my rpm,s are runnibf 2500 rpm at 60 62 mph, sound about right? truck is a 4speed auto
Sierra (See sig) with 3.73 gears, EATON E-locker differential, Suncoast Triple Lock TQ Converter, upgraded Allison tranny input/output shafts, performance valve body and shift kit: 1600 RPM in 6th gear direct at 60 MPH towing our 14,305lb 5'er not using tow-haul. 1750 RPM in 5th gear tow-haul.