spring around brake drum - The 1947 - Present Chevrolet & GMC Truck Message Board Network

mikegi · 06-15-2002, 09:16 AM

this is not that important to me but what the hell is that round spring on the brake drum for.seems like they either rust away or never go back on.just wondering,have nothing to do this rainy morning.

*67Fleetsidedream* · 06-15-2002, 09:57 AM

It keeps the drum from resonating during braking. In other words it keeps it from hummmmmmming while braking.
Ben

Lippyp · 06-15-2002, 01:24 PM

If this is a long spring around the outside of the brake drum it may be to help with heat dissipation. It is certainly a trick used by people racing drum braked classics here in the UK. The spring draws heat from the drum and because of its shpae and the airflow through it loses heat quicker than the big chunk of iron it's wrapped around. It is a crude version of the finned drums you find on machines like old Alfa's and such.

Longhorn Man · 06-15-2002, 02:22 PM

This was the very first question I posted on here over a year ago.
Mine has the 2 front ones taken off (I STILL have not installed them) and it does in fact mak a rather annoying ringing sound that I can hear over my [pipes. And the pipes are not very quiet either.

06-15-2002, 09:16 AM	#1
mikegi Registered User Join Date: Jun 2000 Location: Springvale,Maine Posts: 201	spring around brake drum this is not that important to me but what the hell is that round spring on the brake drum for.seems like they either rust away or never go back on.just wondering,have nothing to do this rainy morning. __________________ Springvale,Maine 71 3/4 GMC lwb

06-15-2002, 01:24 PM	#3
Lippyp English Chevy Owner Join Date: May 2002 Location: Shropshire, UK/ Lot, France Posts: 1,848	If this is a long spring around the outside of the brake drum it may be to help with heat dissipation. It is certainly a trick used by people racing drum braked classics here in the UK. The spring draws heat from the drum and because of its shpae and the airflow through it loses heat quicker than the big chunk of iron it's wrapped around. It is a crude version of the finned drums you find on machines like old Alfa's and such. __________________ Phil '67 C10 long fleet. 350/TH350, 4 bbl Carter, K&N, Dual exhaust, loads of stuff coming soon 2001 S10 Blazer Daily Driver, bone stock 4 door 4x4 with manual transmission

06-15-2002, 09:57 AM	#2
67Fleetsidedream Wiseass secured himself a BAN Join Date: Nov 2000 Location: MOON!!! Posts: 2,282	It keeps the drum from resonating during braking. In other words it keeps it from hummmmmmming while braking. Ben

06-15-2002, 02:22 PM	#4
Longhorn Man its all about the +6 inches Join Date: Jan 2001 Location: Hilliard Ohio Posts: 2,690	This was the very first question I posted on here over a year ago. Mine has the 2 front ones taken off (I STILL have not installed them) and it does in fact mak a rather annoying ringing sound that I can hear over my [pipes. And the pipes are not very quiet either.



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