When improved gears were introduced in A+ transmissions starting in 1979, the primary gear was also revised. It is identifiable by bushing IDs of 1.629" and 1.504", front and rear respectively, and 29 or 30 (economy gear) tooth count. If you are fitting an A+ transmission, you must use the corresponding A+ primary gear. Special Order Item, allow four weeks.
See DAM8890-USED for used version.