Seals are small parts with outsized consequences: a weeping output or input seal drains gear oil, contaminates brakes and clutches, and eventually costs bearings. Replacing the seal with the correct profile at the time of assembly is far cheaper than chasing the leak after the case is back in the vehicle.

Advance Adapters 716066 Compatibility Notes:

• Output Shaft Seal and Plug Kit for GM 6L80E and 6L90E 2WD.
• Sold as a Kit.