GM Tech Tip: Slap Or Clunk From Rear Leaf Spring
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GM Tech Tip: Slap Or Clunk From Rear Leaf Spring

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. The rear leaf spring tip inserts may have broken apart from wear and fallen out, or may be severely worn or damaged.

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Models

• 1999-2012 Chevrolet Silverado 1500/2500

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• 2000-2012 Chevrolet Suburban 2500

• 2002-2006 Chevrolet Avalanche 2500

• 2003-2012 Chevrolet Express 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y)

• 1999-2012 GMC Sierra 1500/2500

• 2000-2012 GMC Yukon XL 2500

• 2003-2012 GMC Savana 2500/3500 Vans with 8500 GVWR (RPO C5F), 8600 GVWR (RPO C6P) or 9600 GVWR (RPO C6Y)

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.

Cause

The rear leaf spring tip inserts may have broken apart from wear and fallen out, or may be severely worn or damaged.

0-gm leaf spring tech tipCorrection

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

Verify that the rear leaf spring tip inserts (1) are present on the leading and trailing ends of the overload spring (second stage leaf), and inspect the condition of the inserts. If the inserts are either not present or severely worn or damaged, install new inserts.

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

Courtesy of ALLDATA

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