GM vehicles' rear leaf slap/clunk

June 26, 2012
Owners of various rear-leaf-spring-equipped GM vehicles may complain about a rear leaf spring slap or clunk noise (most apparent on irregular road surfaces).

Owners of various rear-leaf-spring-equipped GM vehicles may complain about a rear leaf spring slap or clunk noise (most apparent on irregular road surfaces).

This applies to the following:

1999-2008 Chevy Silverado 1500/2500

2000-2008 Chevy Suburban 2500

2002-2008 Chevy Avalanche 2500

2003-2008 Chevy Express 2500/3500 vans

1999-2008 GMC Sierra 1500/2500

2000-2008 GMC Yukon XL 2500

2003-2008 GMC Savana 2500/3500 vans

Do not disassemble the main spring pack or remove the bushing from the spring. Verify that the leaf spring inserts are present on the leading and trailing edges of the overload spring (second stage leaf). The insert(s) may have broken apart from wear and have fallen out. If the inserts are missing, replace them.

NOTE: On some models, the vehicle may need to be raised to allow the springs to separate enough for insert service.

INSERT P/N

Inserts for single leaf with overload spring            15247030

Inserts for multi-leaf spring assembly                 15604067

Sponsored Recommendations

Learn how electronic parking brake actuators have replaced manual systems and now play a key role in advanced safety features like automatic emergency braking. This WIYB Training...
Not all fuel injectors are created equal. In this WIYB Training Series, we compare Standard® Fuel Injectors against OE, low-cost imports. See why precision engineering and rigorous...
Carrying active OEM subscriptions for all manufacturers is not possible for many shops. However, access to this software is required for certain modern vehicles and repairs, and...
Learn how to properly lubricate your AIRCAT air tools to keep them running at peak performance. Discover essential daily maintenance and storage techniques, along with the right...

Voice Your Opinion!

To join the conversation, and become an exclusive member of Vehicle Service Pros, create an account today!