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HOMESERVICE MANUALSGMC1999FORWARD CONTROL 5.7 R, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 654 (SEAT SYSTEM)REPAIR INSTRUCTIONSSEAT CUSHION FRAME REPLACEMENTINSTALLATION PROCEDURE

1999 GMC Forward Control 5.7 R, Automatic

Installation Procedure

1999 GMC Forward Control 5.7 R, AutomaticSECTION Installation Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Install the springs and wires to the seat cushion frame.
1. Center the wire assembly to the front of the seat cushion frame.
2. Hook the tension springs into the rear of the seat frame.
3. Insert a screwdriver between the tension spring coils, stretch the spring to hook the spring to the wire assembly.
  
  Fig 1: Installing Springs & Wires To Seat Cushion Frame
  Courtesy of GENERAL MOTORS CORP.
Install the recliner mechanism to the seat frame.

Fig 2: Installing Recliner Mechanism To Seat Frame
Courtesy of GENERAL MOTORS CORP.
Install the seat adjuster to the seat cushion frame.
Loop and route the reclining mechanism cables under the seat cushion frame springs.
Position the actuators with the arrow on the hinge end of the actuator pointing forward and with the release cable clip opening pointed downward.
Insert the forward ends of the actuators into the actuator brackets.

Fig 3: Installing Seat Adjuster To Seat Cushion Frame
Courtesy of GENERAL MOTORS CORP.
Install the seat back and the actuator to the seat cushion frame with the hinge bolts.
Apply Loctite™ 271 to the hinge bolt threads.
NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
Install the hinge bolt nuts.
Tighten

Tighten the hinge bolt nuts to 24 N.m (18 lb ft).
Install the pins to the forward ends of the actuators.

Fig 4: Installing Seat Back & Actuator To Seat Cushion Frame With Hinge Bolts
Courtesy of GENERAL MOTORS CORP.
Install the seat module (Base Power Seat).
Install the lumbar pump and module (Sport Seat).
Install the memory module (Optional Sport Seat).

Fig 5: Memory Module (Optional Sport Seat)
Courtesy of GENERAL MOTORS CORP.
Position the trim cover over the seat cushion foam pad.
Install the cover and foam pad to the seat cushion frame.
Tighten the draw string at the rear of the seat cushion and securely tie the draw string.
Install the hog rings attaching the rear side corners of the seat cushion trim cover.

Fig 6: Installing Hog Rings Attaching Rear Side Corners Of Seat Cushion Trim Cover
Courtesy of GENERAL MOTORS CORP.
Install the hog rings attaching the rear center flap.

Fig 7: Installing Hog Rings Attaching Rear Center Flap
Courtesy of GENERAL MOTORS CORP.
Install the side trim panel (Power Seat). Refer to TRIM PANEL REPLACEMENT - FRONT SEAT .

Fig 8: Side Trim Panel (Power Seat)
Courtesy of GENERAL MOTORS CORP.
Install the recliner handle.
1. Position the handle retaining spring clip into the lock position.
2. Snap the handle onto the reclining mechanism shaft.
  
  Fig 9: Recliner Handle
  Courtesy of GENERAL MOTORS CORP.
Install the buckle side of the seat belt to the seat frame.
Tighten

Tighten the seat belt buckle side mounting nut to 50 N.m (37 lb ft).
Install the seat. Refer to SEAT REPLACEMENT (POWER) or SEAT REPLACEMENT (MANUAL) .

Fig 10: Installing Buckle Side Of Seat Belt To Seat Frame
Courtesy of GENERAL MOTORS CORP.