what rpm's/mph ??

[argo86]

I recently bought a '94 crewcab 4x4 srw with 4:10 gears, 245/75/16 tires and its a 5 speed. I'm running about 2650 rpm at 65mph empty. This seems to be excesive, am I right? Could it be the cluth slipping at high speed?, I'm not new to driving stick but this is my first fullsize manual and diesel.Any input appreciated.

[Hye]

If your tach doesn't read correctly, its probably the alternator's fault. The pulley size and alternator internal construction can make your tach read wrong. Do a search on alternator pulley . There's lots of stuff on the subject.

Search button is in tiny print near top of page.

There is an RPM calculator in the member's area.

Welcome aboard.

[More Power]

You can see the rpm/mph relationship for the different gear ratios on the Fuel Economy (http://www.thedieselpage.com/mileage.htm) page.

MP