3.73 8.8" FORD Motive 8.8" ring gear diameter, 1.626" diameter pinion stem. 30 spline pinion, 8620 alloy.
R3.90 8.8" FORD Motive Gear 8.8" ring gear diameter, 1.626" diameter pinion stem. 30 spline pinion, 8620 alloy.
4.10 8.8" FORD Motive Gear 8.8" ring gear diameter, 1.626" diameter pinion stem. 30 spline pinion, 8620 alloy.