Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.

Remove the fill plug-(1).Installation Procedure

Clean the fill plug and apply adhesive GM-P/N-12345493 (Canadian-P/N-10953488) tothe threads.
Caution:Refer toFastener Caution.
Install the fill plug-(1) and tighten to 39-Y (29-lb-ft).Lower the vehicle.
Drain Plug Replacement Automatic Transmission Unit
Transmission Fluid Drain and Fill Automatic Transmission UnitPropeller Shaft Phasing Inspection Driveshafts Propeller Shaft Assembly
Special ToolsJ-23498-ADriveshaft Inclinometer, or equivalentNote:This inspection procedure is intended to inspect propellershaft systems with 2-or 3-U-jointsonly.Correct phasing of a propeller shaft refers to the relativealignment of the U-joint yoke flanges to each other to provideproper cancellati ...