The BD Diesel transmission for 1991–1993 Dodge 518 4WD is a heavy‑duty remanufactured unit that upgrades internals for higher durability and torque capacity. Revisions include rollerized geartrain, extra clutch material, upgraded governor components, a rigid aluminum pan that adds about one quart of oil and heat‑dissipating fins, plus an auxiliary full‑flow filter option. The assembly is dyno tested and built to improve longevity over stock.
BD Diesel Transmission - 1991-1993 Dodge 518 4wd