Differential ratio?
My 2000 Ford F-250 has a axle code RC-52 on the door. I take it is a 4:10 non limited slip? With my manual 5 sp 75mph is 3000 rpm.
Forum Discussion
Did a check on my 6.8L/4.10 rear with the 5 sp auto and I was turning just 2350 RPM's at 75 mph. 3000 rpm's would indicate very low ratios in the 5 sp manual transmission
