I need a matched 42 tooth – 11 tooth ratio ring gear and pinion gear or a mismatched ring gear and pinion or as last resort the pinion gear only for my 1927 touring car series AA.

Pinion Gear Dimentions Aprox:

Minor tooth diameter = 2.04″

Major tooth diameter = 2.55″

Tooth length = 1.25″

Total gear & bearing shank length = 2.07″

Ring Gear Dimensions Aprox:

Minor tooth inside diameter = 6.38″

Major tooth outside diameter = 8.50″

Tooth length = 1.18″

Inside bore that locates around the differential = 5.00″

Maximum tooth thickness from back side = .80″