GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 Sierra Denali 🢒 Transmission 🢒 Automatic Transmission - Allison 🢒 Power Take-Off Cover Gasket Replacement

Removal Procedure

    Object Number: 658995 Size: SH
  1. Remove 6 bolts (3).
  2. Remove the power take-off (PTO) cover (2) and gasket (1). Discard the used gasket.
  3. Ensure the PTO gasket face on the transmission case is free of all foreign material, nicks, and scratches.

Installation Procedure

    Object Number: 658995 Size: SH
  1. Install the new PTO cover gasket (1) and cover (2).

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Start the top-center bolt (3) first. Install the other 5 bolts.

    3. Tighten
    Tighten all bolts to 43 N·m (32 lb ft).