Posted by Ed Tavernier [24.188.91.191] on Saturday, January 08, 2011 at 22:19:51 :
In Reply to: 4:10 VS 3:73 VS 3:54 Gears posted by Frank [207.119.8.3] on Saturday, January 08, 2011 at 10:02:24 :
Frank,
My 98.5 24 valve Cummins 2500 heavy duty srw had the 410 gears. My 2004.5 3500 Cummins has the 375m gears. I felt a significant drop in bottom end between the old and the new; both trucks were very similar otherwise.
Surprisingly the older truck got 22 mpg most of the time; the newer truck only gets that milage when I am VERY diplomatic with the right pedal.
Eddie