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 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 11-14-2017, 12:37 PM   #1
Pb57
Registered User
 
Join Date: Nov 2017
Location: Sioux City Iowa
Posts: 1
1970 C20 4x4 brake help

Hi folks. I just bought a1970 Chevy C20 4x4 that has drum drum brakes with no power booster. I want to keep the drums but would like a power booster for drum drum. Can I go to the parts store and get the power booster and master cylinder and just bolt on or are there other parts I need, brackets etc.
thanks Paul
Pb57 is offline   Reply With Quote
Old 11-15-2017, 02:34 AM   #2
72chevynut
Senior Member
 
72chevynut's Avatar
 
Join Date: Jan 2014
Location: Mt.Sterling, KY
Posts: 358
Re: 1970 C20 4x4 brake help

Hello and welcome. Iím no expert but think you will probably need the brackets between booster and firewall. Then also correct linkage between booster and brake pedal. Iíve never added power brakes to front drum setup before but know itís possible. I have seen trucks setup from factory like that. If you can post pictures of your brake setup now on firewall, that will help the guys on here help you.
__________________
Michael
72chevynut is offline   Reply With Quote
Old 11-15-2017, 07:15 AM   #3
Don Quixote
Registered User
 
Don Quixote's Avatar
 
Join Date: May 2008
Location: Woodlawn, TN
Posts: 237
Re: 1970 C20 4x4 brake help

I have a '72 C25 but the chassis from a '69 C30 that ran factory drum/drum vacuum brakes. Everything is the same. Just use the whole bracket, booster and MC and use your distribution block in lieu of a prop valve.

I actually left the front drums on mine when I swapped the frame out about 10 years ago because I was warping rotors whenever I pulled heavy trailers. I haven't had that problem since.
__________________
Rocinante: 1972 GMC C25, 292, SM465, 14 bolt, power nothing, 440k and still handles my PCS moves
Jorge: Kia Roller-skate with lots of buttons for the wife
Wovoka: 2017 Indian Chief Vintage, better on gas but not much

So far, this is the oldest I've ever been.
Don Quixote 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 10:14 PM.


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