1997 1500 4x4 5.2 auto
DGB - STD DUTY 4SPD AUTO TRANS
DMD - 3.5 AXLE RATIO
285/75R16, speedometer is calibrated correctly with GPS, or very dang close.
RPM is ~1625 @ 60MPH in OD
An online calculator I used says it should be in the 3.80 to 3.90 range, based on 0.69:1 OD, and 32.8 inch tires...