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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
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| | | | Joined: Aug 2006 Posts: 98 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2006 Posts: 98 | I've got 2 1960 1/2 ton trucks.One of them has a spring wrapped around the outer edge of both of the rear brake drums.What is the purpose of this?I've seen it done before on other trucks as well.The '60 that I drive doesn't have any.Any help here would be appreciated as this is driving me nuts. | | | | | Joined: May 2005 Posts: 8,878 . | | . Joined: May 2005 Posts: 8,878 | They are supposed to make the brakes quieter. | | | | | Joined: Dec 2006 Posts: 1,464 Shop Shark | | Shop Shark Joined: Dec 2006 Posts: 1,464 | I've been waiting for one of our resident experts to comment on this, but since no one has - here goes: I think it was used as a noise/vibration dampener. You got me to thinking about this with your question, so I called some of the local brake shops and they all said the same thing. My original thought was that they were used as a heat-sink to dissapate brake heat, or possibly used to keep the drum from warping under extreme heat conditions, but was told that wouldn't be necessary on rear brake drums because they only get about 25% of the brake load. Hope that helps! | | | | | Joined: Aug 2006 Posts: 98 Wrench Fetcher | | Wrench Fetcher Joined: Aug 2006 Posts: 98 | Thanks alot guys.That has been bugging me for sometime now. | | |
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