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Old 05-20-2012, 01:26 PM   #1
Lyn Smith
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Default stock GM front disc brake spring kit

My latest project is a 73 GM A body with the stock front disc brakes.Ive heard there is a spring kit that you can put in the caliper to take some of the drag off of the rotors.Anyone know who has these? thanks
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Old 05-21-2012, 02:58 PM   #2
Jim Kaekel
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Default Re: stock GM front disc brake spring kit

Lyn: I've heard of some people using clutch drum return springs from an auto trans. You would just need to find some that are the correct height to fit into the caliper.
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Old 05-21-2012, 06:50 PM   #3
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Default Re: stock GM front disc brake spring kit

Check Raybestos, they have a spring for some applications...
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Old 05-21-2012, 07:01 PM   #4
Mike Fuller
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Default Re: stock GM front disc brake spring kit

Die springs work well. You have to do a minor mod to the pads. If we both end up at Joliet I'll show you what I mean.
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Old 05-22-2012, 05:30 AM   #5
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Default Re: stock GM front disc brake spring kit

ya know, i've heard of this for year BUT have yet to figure out where the spring could possibly fit to take the drag out of the pads... can/will somebody enlighten me?
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Old 05-22-2012, 07:40 AM   #6
Dennis Banach
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Default Re: stock GM front disc brake spring kit

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Originally Posted by Tom keedle View Post
ya know, i've heard of this for year BUT have yet to figure out where the spring could possibly fit to take the drag out of the pads... can/will somebody enlighten me?
Tom,
The springs go in between the pads on the guide pins.
I ran `69 Camaro in the `70s with Factory disc before converting to drum fronts,I used the preload springs from a 12 bolt posi unit with a 7/16 washer on each end of the spring.
You do need to keep an eye on pad wear and change them if they get close to coil binding the springs.
I ran a full season with that set up and never had a problem.
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Old 05-22-2012, 08:54 AM   #7
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Default Re: stock GM front disc brake spring kit

ahhhh, NOW i get it!
ain't gonna help me though, got ford type (think mustang II) calipers on the rambler...
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Old 05-22-2012, 11:28 PM   #8
Dan Nugent
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Default Re: stock GM front disc brake spring kit

I found some springs at the local hardware store that had a spring assortment. Used ones that fit the guide pin close, just enough tension to let the rotors turn freely.
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Old 05-23-2012, 01:10 AM   #9
Mark Yacavone
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Default Re: stock GM front disc brake spring kit

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Originally Posted by Dan Nugent View Post
I found some springs at the local hardware store that had a spring assortment. Used ones that fit the guide pin close, just enough tension to let the rotors turn freely.
Good point..Too much spring, not enough pedal (on the first pump)
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