Brake Drum Spring

[dodgedart1968]

What is the purpose of this brake drum spring?

 

[67Dart273]

Anti noise, anti-ringing, anti chatter. I've turned hundreds of drums and rotors. You must use a rubber strap wrapped around the outslide of the drum to prevent ringing--like a bell--from the energy of the cutting tool.

 

[dodgedart1968]

I've never seen these on any other car. Does anyone bother using them after drum replacement? It's hard to imagine that they have any effect at normal road speeds.

 

[67Dart273]

It may be the shape, thickness, or alloy of the drum. I have seen them on other cars, but don't ask me "which". IT HAS BEEN a very long time LOLOL

Turns out Corvair used them............

Spring around the outside of the drum.

C2 Corvettes..........

Purpose of Springs AROUND Brake Drums - CorvetteForum - Chevrolet Corvette Forum Discussion

Ponch GTO..............

Mastering GTO Restorations: Brake Guide

 

[dodgedart1968]

I have a '62 Corvair Monza. I have fully restored it, and it had no drum spring.

 

[72bluNblu]

Haven't seen any on A-bodies, but I have have seen them on some of the mid-sixties C-body 8 3/4's with 11x2" brakes for some reason.

 

[cudamark]

My '66 A-bodies have them....well most of them. I have one 10" one missing. I've seen them on almost every model Mopar in the '60's. I've also seen lots of aftermarket drums that don't have the groove for the spring, so. lots of them were left off. When I closed my business, I must have thrown over 100 of them in the scrap bin. Now I could use one for a resto! Figures....