Tremec ® 5 Speed; 26 Spline Input Shaft; 31 Spline Output Shaft; Internal Shifter; Aluminum Case; 2.87 First Gear Ratio/ 1.90 Second Gear Ratio/ 1.34 Third Gear Ratio/ 1.00 Fourth Gear Ratio/ 0.82 Fifth Gear Ratio; Not For Sale On Pollution Control Vehicles