1993 GMC Suburban Owner's Manual - Page 287

How to Add Fluid: Here'show to add fluid.Refer to theMaintenanceSchedule to determine and Lubricants" in the what kind of fluidtouse.See"RecommendedFluids Index. 1. Removethefillerplug. 2. Add fluid atthefiller plug hole.Addonlyenoughfluid level up to thebottom of thefillerplughole. 3. Install thefillerplug. to bringthe fluid Be surethat the filler plug is fullyseated. Hydraulic Chltch The hydraulic clutch in yourvehicle is self-adjusting. A slightamountof (1/2 inch to an inch) in thepedal is normal. play 6-2 1