Check out any of the thirty-five Transmission ('81-'83 A2/a3/a4) components enlisted.
The most reasonably priced component used on the Kz440a2 Ltd 1981 Usa Canada Transmission ('81-'83 A2/a3/a4) is the Ball-steel,5/32.
Some items from this specific schematic: Gear,input5th,23t, Bearing-needle,20r251, 5th Gear,output Shaft, 4th Gear Output.