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#1
06-17-2026, 10:05 PM
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Over the years I've found several different defects that can cause a double knock. Most times I've found them in suspension components, sway bar bushings, and shock mounts in particular cause double knocks.
I also found a trunk torsion rod disconnected one time that caused a double knock, the unlatched end came out of the sheet metal hook. 
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Brad Yost 1973 T/A (SOLD) 2005 GTO 1984 Grand Prix 100% Pontiacs in my driveway!!! What's in your driveway? If you don't take some of the RACETRACK home with you, Ya got cheated    
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