1985 C4 Corvette Gearing (Doug Nash 4+3)

Doug Nash "4+3" modified Borg-Warner Super T-10 4-Speed Manual Transmission

Engine RPM

Torque Mult.

Cruising Speed (MPH) 65

Gear Selection (Doug Nash 4+3)

Rear Differential Ratio 3.07

3.07 is the standard factory ratio for '85 C4 Manuals.

Tire Diameter (Inches) 26.0

Stock 255/50VR16 tires are approx 26.0 inches tall.