Typical speeds:

Highway/Interstate:
80 MPH - 5th gear 3300 RPM - That's as fast as I care to do while taking more than a quick glance at the gauges.
70 MPH - 5th gear 3000 RPM
70 MPH - 4th gear 3500 RPM
60 MPH - 5th gear 2500 RPM
60 MPH - 4th gear 3000 RPM

Local major roads:
50 MPH - 5th gear 2000 RPM
40 MPH - 4th gear 2000 RPM

Residential roads:
20 MPH - 2nd gear 2250 RPM
25 MPH - 2nd gear 2750 RPM


Keep in mind, this is a sampling of just me driving around... My instrumentation is not accurate, it's just stock gauges and I'm not actually taking detailed readings, just looking as I drive.

All gears in the truck are stock.