The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevy/GMC Suburbans & Panels Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-10-2017, 08:41 PM   #1
69BUCKET
Registered User
 
Join Date: Oct 2017
Location: Newton
Posts: 15
Drum to disk help needed

I have a 69 C10 with front drum brakes. What parts are needed to make a clean swap and drop? I am probably getting the CPP brake kit that comes with rotors, calipers, lines and hardware. Do I need any other brackets, booster, master cylinder? Do OEM control arms work for 2" drop? So far I have 2" drop spindles. Thanks in advance for the help.
69BUCKET is offline   Reply With Quote
Old 11-11-2017, 05:22 AM   #2
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 9,182
Re: Drum to disk help needed

I'm going to assume that you are staying with six lug. I would believe and hope that the OEM A arms work fine with the dropped spindles. Yes you will need a proper disk brake master cylinder. If you look at the setup for a 71/72 you should be good as they came from the factory with disk brakes.
__________________
If you can't fix it with a hammer, you have an electrical problem.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.
mr48chev is offline   Reply With Quote
Old 11-11-2017, 11:07 AM   #3
mr48chev
Registered User
 
mr48chev's Avatar
 
Join Date: Jul 2007
Location: Toppenish, WA
Posts: 9,182
Re: Drum to disk help needed

I've never seen them but in an ideal situation someone would make six lug rotors that bolted on 71/72 and maybe up though mid 80's spindles. That would make the swap all stock parts except the rotor.

Looking at the CPP spindles I see that they keep the wheel mount surface inboard from where it would be with most disk brake spindles. Not a bad idea if you run bigger tires.
__________________
If you can't fix it with a hammer, you have an electrical problem.

My ongoing truck projects:
48 Chev 3100 that will run a 292 Six.
71 GMC 2500 that is getting a Cad 500 transplant.

Last edited by mr48chev; 11-11-2017 at 11:18 AM.
mr48chev is offline   Reply With Quote
Old 11-11-2017, 11:33 AM   #4
lolife99
Registered User
 
lolife99's Avatar
 
Join Date: Nov 2002
Location: Mid-MO
Posts: 22,063
Re: Drum to disk help needed

Quote:
Originally Posted by mr48chev View Post
I've never seen them but in an ideal situation someone would make six lug rotors that bolted on 71/72 and maybe up though mid 80's spindles. That would make the swap all stock parts except the rotor.

.
Most aftermarket spindle companies have been making 6-lug "direct bolt on" rotors for a few years now.
Early Classic Enterprises is where I got my last set.
CPP sells them also.
They fit stock and dropped 71-87 HD spindles for 1.25" rotors.
__________________
Keith
lolife99 is offline   Reply With Quote
Old 11-11-2017, 01:21 PM   #5
69BUCKET
Registered User
 
Join Date: Oct 2017
Location: Newton
Posts: 15
Re: Drum to disk help needed

Thank you for the replies. I think I am going Early Classic disc brake kit and their 9" booster since I'll be going with LS engine.

My plan is 2" spindles w/ 2" springs in front. Rear 4" springs and 1.5" blocks....their site says 2" not recommended for 15" wheels... which I'll be running 275 60 tires. Anyone running 4"springs and 2" blocks?
69BUCKET is offline   Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:33 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Copyright 1997-2013 67-72chevytrucks.com