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Old 02-11-2008, 04:16 PM
dpetryk's Avatar
dpetryk dpetryk is offline
Electrons can do anything
Join Date: Sep 2001
Location: Houston, Texas
Posts: 1,072
Check the ball joint at the bottom of the hydraulic cylinder rod where it connects to the trailing arm. These joints sometimes wear out before any other part in the system and can cause the exact problem you are experiencing. Unfortunately that ball joint it not available as a separate item. At least I was not able to find any. If you do find a source please post the information here for everyone to see.

Try this to confirm that the ball joint is the problem.

Load the car up with as much weight as possible. Get 3 football players in the back seat and fill the trunk with luggage. If the clunking goes away, its is the ball joints.

The added weight causes the ball joint to stay seated because a majority the additional weight is now handled by the shock. When there is no weight in the car the shock is lightly loaded and can cause a worn joint to rattle.
I got too many cars!! Insurance eats me alive. Dave

78 Corvette Stingray - 3k
82 242 Turbo Volvo - Manual - 270k
86 300e 5 speed manual - 210k
87 420sel - 240k
89 560sl - 78k
91 420sel - 205k
91 560sel - 85k
94 GMC Suburban - 90k
97 Harley Davidson Heritage Softail - 25k
00 GMC Silverado 1 ton 30k

Last edited by dpetryk; 02-11-2008 at 04:25 PM.
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