Drum to disk conversion - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chvyboy · 12-04-2012, 02:35 PM

Hey everyone,

I'm looking to convert the front drum brakes to disk brakes. I looked around for a couple of kits but most of them are 5 lug. I want to keep my truck a 6 lug. So if anyone has done this can you please help me out by sharing pictures or knowledge... Also most kits are saying if your truck is a 70 or older you need to modify the firewall, again pictures or knowledge on this is greatly appreciated. Thanks guys!!!!
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Longhorn 70 · 12-04-2012, 02:40 PM

I haven't seen the parts YET but ordered a kit for the front of my 70 3/4 ton in 8 lug from Tucker's Classic Parts. They assured me they are American made. The price was OK but not killer. Look at the 6 lug kit and see if it's what you need.

**lolife99** · 12-04-2012, 02:49 PM

Why would you have to modify the firewall?

chvyboy · 12-04-2012, 02:56 PM

I looked at summit at a conversion kit, unfortunately it was a 5 lug, but they left a note saying: Summit® disc brake kits are manufactured to meet or exceed DOT standards. Kit includes 2 in. lowering spindles. Kit includes braided brake lines. 5 x 5 in. bolt pattern. Will only work on trucks equipped with a bail-type master cylinder cap retainer. Will not work on trucks equipped with a bolt-on master cylinder cap retainer.

Then I checked CPP for a kit and found a 6 lug kit, once again there was a note saying: Kits will fit 1967-70 trucks when modifying the firewall.

Here's the link to CPP's 6 lug kit

http://www.classicperform.com/Store/...0CBK-55213.htm
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**lolife99** · 12-04-2012, 03:06 PM

www.EarlyClassic.com would be my first choice.
Call ECE and let them fix you up.

This would be my second choice:
Look at this kit.
http://www.performanceonline.com/196...d-6-LUG-16671/

**lolife99** · 12-04-2012, 03:08 PM

Look here:
Read the one that applies to you.

http://67-72chevytrucks.com/vboard/s...d.php?t=444823

chvyboy · 12-04-2012, 03:14 PM

Took a look at both links, I like the second link
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12-04-2012, 02:35 PM	#1
chvyboy Registered User Join Date: Nov 2011 Location: san mateo, ca Posts: 118	Drum to disk conversion Hey everyone, I'm looking to convert the front drum brakes to disk brakes. I looked around for a couple of kits but most of them are 5 lug. I want to keep my truck a 6 lug. So if anyone has done this can you please help me out by sharing pictures or knowledge... Also most kits are saying if your truck is a 70 or older you need to modify the firewall, again pictures or knowledge on this is greatly appreciated. Thanks guys!!!! Posted via Mobile Device __________________ My project: Spare change http://67-72chevytrucks.com/vboard/s...=1#post5031992

12-04-2012, 02:40 PM	#2
Longhorn 70 Registered User Join Date: Dec 2012 Location: Chandler AZ Posts: 1,149	Re: Drum to disk conversion I haven't seen the parts YET but ordered a kit for the front of my 70 3/4 ton in 8 lug from Tucker's Classic Parts. They assured me they are American made. The price was OK but not killer. Look at the 6 lug kit and see if it's what you need. __________________ 1970 Longhorn, Front Disc, 350/4 bolt, 882 heads, HEI, Edelbrock, 700R4, HO-52/4.11. 1996 Corvette, Collector Roadster, LT4, 396, 450RWHP, 6sp, 4.11/Dana44/posi 5 point roll bar And let us not grow weary of doing good, for in due season we will reap, if we do not give up. Gal 6:9 Last edited by Longhorn 70; 12-04-2012 at 02:46 PM.

12-04-2012, 02:49 PM	#3
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Drum to disk conversion Why would you have to modify the firewall? __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

12-04-2012, 02:56 PM	#4
chvyboy Registered User Join Date: Nov 2011 Location: san mateo, ca Posts: 118	Re: Drum to disk conversion I looked at summit at a conversion kit, unfortunately it was a 5 lug, but they left a note saying: Summit® disc brake kits are manufactured to meet or exceed DOT standards. Kit includes 2 in. lowering spindles. Kit includes braided brake lines. 5 x 5 in. bolt pattern. Will only work on trucks equipped with a bail-type master cylinder cap retainer. Will not work on trucks equipped with a bolt-on master cylinder cap retainer. Then I checked CPP for a kit and found a 6 lug kit, once again there was a note saying: Kits will fit 1967-70 trucks when modifying the firewall. Here's the link to CPP's 6 lug kit http://www.classicperform.com/Store/...0CBK-55213.htm Posted via Mobile Device __________________ My project: Spare change http://67-72chevytrucks.com/vboard/s...=1#post5031992

12-04-2012, 03:06 PM	#5
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Drum to disk conversion www.EarlyClassic.com would be my first choice. Call ECE and let them fix you up. This would be my second choice: Look at this kit. http://www.performanceonline.com/196...d-6-LUG-16671/ __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

12-04-2012, 03:08 PM	#6
lolife99 67-72 parts collector,… Join Date: Nov 2002 Location: Mid-MO Posts: 22,700	Re: Drum to disk conversion Look here: Read the one that applies to you. http://67-72chevytrucks.com/vboard/s...d.php?t=444823 __________________ Keith Convert to disc brakes. http://67-72chevytrucks.com/vboard/s...d.php?t=444823

12-04-2012, 03:14 PM	#7
chvyboy Registered User Join Date: Nov 2011 Location: san mateo, ca Posts: 118	Re: Drum to disk conversion Took a look at both links, I like the second link Posted via Mobile Device __________________ My project: Spare change http://67-72chevytrucks.com/vboard/s...=1#post5031992



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