Rear Leaf Spring Slap or Clunk Noise (Replace Spring Inserts). Chevrolet Avalanche

Subject:

Rear Leaf Spring Slap or Clunk Noise (Replace Spring Inserts)

Models:

1999-2008 Chevrolet Silverado 1500/2500 Series Pickups

2000-2008 Chevrolet Suburban 2500 Series

2002-2008 Chevrolet Avalanche 2500 Series

2003-2008 Chevrolet Express 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y)

1999-2008 GMC Sierra 1500/2500 Series Pickups

2000-2008 GMC Yukon XL 2500 Series

2003-2008 GMC Savana 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y)

This bulletin is being revised to add model years and update the Parts Information. Please discard Corporate Bulletin Number 03-03-09-002A (Section 03 -- Suspension).

Condition

Some customers may comment on a rear leaf spring slap or clunk noise. This noise is most apparent when the vehicle is operated over irregular road surfaces.

Correction

Important: DO NOT disassemble the main pack on the leaf spring or remove the bushing from the spring.


(1)	Insert -- P/N 15604067


(1)	Insert -- P/N 15247030

Verify that the rear leaf spring inserts (1) are present on the leading and trailing ends of the overload spring (second stage leaf). The insert may have broken apart from wear and fallen out. If the inserts are not present, install new ones.

Important: On some models, the vehicle may have to be raised to allow the springs to separate enough so the insert can be installed.

Parts Information

Important: Technicians should refer to the Parts Catalog when ordering the insert.

Part Number	Description
15604067	Insert, Rear Spring Leaf
15247030	Insert, Rear Spring Leaf

Warranty Information

For vehicles repaired under warranty, use:

Labor Operation	Description	Labor Time
E5168	Insulator and/or Insert, Rear Leaf Spring - One or All - Replace	Use Published Labor Operation Time