The Ford Barn

37 Cab · 01-13-2020, 07:24 PM

Finished the Mitchell O/D and the weather cooperated today so I got to put some miles on it. My car has 4.11 gears with 215/75/15 tires. At roughly 60 MPH it was running 3000 RPM. Now running 3000 RPM a shift to O/D drops the RPM to 2100. We have a lot of 65 MPH 2 lane roads so I was always just trying to stay out of the way. I couldn`t be happier with the results. Cruising along with traffic at 65-70 it is perfect. The speedometer is off so I have to change the driven gear on the Mitchell. (late model ford part) Guessing though, 70 MPH is around 2500 RPM. I will take the wife`s Garmin for a ride tomorrow to check speed vs RPM. Best thing I have done to my car by far!!

01-13-2020, 07:24 PM	#1
37 Cab Senior Member Join Date: Dec 2014 Location: Miami Oklahoma Posts: 535	Mitchell in a 37..Report Finished the Mitchell O/D and the weather cooperated today so I got to put some miles on it. My car has 4.11 gears with 215/75/15 tires. At roughly 60 MPH it was running 3000 RPM. Now running 3000 RPM a shift to O/D drops the RPM to 2100. We have a lot of 65 MPH 2 lane roads so I was always just trying to stay out of the way. I couldn`t be happier with the results. Cruising along with traffic at 65-70 it is perfect. The speedometer is off so I have to change the driven gear on the Mitchell. (late model ford part) Guessing though, 70 MPH is around 2500 RPM. I will take the wife`s Garmin for a ride tomorrow to check speed vs RPM. Best thing I have done to my car by far!! __________________ Tommy