Installation Procedure
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 GMC Yukon XL, 2004 GMC Yukon, 2004 Chevrolet Tahoe, 2004 Chevrolet Suburban, and 2004 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Install the leaf spring assembly to the vehicle.
- Loosely assemble the spring to the front hanger bracket.
- Install the front spring hanger bracket bolt.
- Install the front spring hanger bracket nut.
- Install the rear spring hanger bracket bolt.
- Install the rear spring hanger bracket nut.
- Install the spring spacer.
- Install the U-bolts.
- Install the anchor plate.
- Install the U-bolt nuts.
Tighten:
- For 25 series without rear wheel steering, tighten the U-bolt nuts to 72 N.m (53 lb ft).
- For all 25 series including rear wheel steering, tighten the U-bolts to 150 N.m (110 lb ft).
- Tighten the front hanger bracket nut to 150 N.m (110 lb ft).
- Tighten the rear hanger bracket nut to 95 N.m (70 lb ft).
- Install the fuel tank for left side applications. Refer to Fuel Tank Replacement (Single Tank) or Fuel Tank Replacement (Single Tank w/5.3L (L59) Engine) or Fuel Tank Replacement (Dual Tanks - Front) or Fuel Tank Replacement (Dual Tanks - Rear) in Engine Controls- 4.8L, 5.3L, 6.0L.
- Install the trailer hitch, if equipped. Refer to Trailer Hitch Replacement in Frame and Underbody.
- Connect the electronic suspension control (ESC) sensors, 25 series utilities, if equipped. Refer to Rear Position Sensor Replacement - Electronic Suspension - Left (15 Series) or Rear Position Sensor Replacement - Electronic Suspension - Left (25 Series) or Rear Position Sensor Replacement - Electronic Suspension - Right in Electronic Suspension Control (ESC).
- Remove the rear axle support.
- Remove the safety stands.
- Lower the vehicle.
IMPORTANT:
Do not reuse the U-bolts.
NOTE:
Refer to Fastener Notice in Cautions and Notices.