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 07-11-2011, 04:17 PM   #1
gotmud
Registered User
 
gotmud's Avatar
 
Join Date: Oct 2003
Location: Cumming, Ga
Posts: 234
Upgrade to power drum brakes

I want to upgrade my grandfathers 68 C10 LWB to power drum brakes....as of now it just has non-power assisted drum brakes....i.e. the stock 6 lug farmers truck package.

I am not at all interested in doing disks.

I assume I need the following:
  1. booster
  2. mounting bracket for booster
  3. push rods

Is there anything else I need? I will be doing normal maintenance on the PU and will probably put on new drums and rubber hoses at the time.

Thanks all
Glenn
__________________
Glenn
Cumming, Ga
(68 C/10 Fleetside LWB 307
(64 C/10 Fleetside Shorty Custom 350, with 73 donor parts aplenty)
(2001 Porsche Boxster S - 168 MPH of fun)
(2005 Chevy Avalanche Z71 1500)
gotmud is offline   Reply With Quote
Old 07-11-2011, 04:42 PM   #2
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: Upgrade to power drum brakes

your list sounds about right. I would recomend a new booster. You have no idea how much brake fluid has leaked into an old one and brake fluid and rubber don't get along very well.
On a side note, you mentioned getting new drums... if you have old drums, and they are servicable still, then you'll want to keep them. Turn them if they are warped, but they are a million times better than the junk ones you'll get if you get new ones.
Longhorn Man is offline   Reply With Quote
Old 07-11-2011, 04:53 PM   #3
gotmud
Registered User
 
gotmud's Avatar
 
Join Date: Oct 2003
Location: Cumming, Ga
Posts: 234
Re: Upgrade to power drum brakes

Quote:
Originally Posted by Longhorn Man View Post
....if you have old drums, and they are servicable still, then you'll want to keep them. Turn them if they are warped, but they are a million times better than the junk ones you'll get if you get new ones.
Thanks Longhorn! They may be serviceable. I will check on that first before I buy new. Its not a daily driver so I can take my time.
__________________
Glenn
Cumming, Ga
(68 C/10 Fleetside LWB 307
(64 C/10 Fleetside Shorty Custom 350, with 73 donor parts aplenty)
(2001 Porsche Boxster S - 168 MPH of fun)
(2005 Chevy Avalanche Z71 1500)
gotmud is offline   Reply With Quote
Old 07-11-2011, 07:20 PM   #4
gotchamel
Registered User
 
Join Date: Feb 2011
Location: islamorada fl.
Posts: 466
Re: Upgrade to power drum brakes

My 69 has what I think is power assist and to be honest there will be alot of things I add or do before the disc conversion even though that seems to be a very popular improvement.I drive slow and the interstate is an hour away.
gotchamel is offline   Reply With Quote
Old 07-11-2011, 09:57 PM   #5
dmack91
Registered User
 
dmack91's Avatar
 
Join Date: Jan 2011
Location: Redmond, OR
Posts: 754
Re: Upgrade to power drum brakes

Best mod I did to my truck. Takes about an hour if you have everything. Best tip is to disconnect and reconnect the rod to the pedal arm before the booster is bolted in. This drops the pedal low enough that you don't have to fight (drop) the steering column.

Here is a link to the FAQ on the swap: http://67-72chevytrucks.com/vboard/s...ht=power+brake
__________________
68 Chev C20- son has it now
83 K20 - bought from son
70 C20 - in progress
dmack91 is offline   Reply With Quote
Old 07-11-2011, 10:11 PM   #6
JJorgensen52
Simple? What's simple?
 
JJorgensen52's Avatar
 
Join Date: Apr 2007
Location: Southeast CT
Posts: 1,472
Re: Upgrade to power drum brakes

Quote:
Originally Posted by Longhorn Man View Post
On a side note, you mentioned getting new drums... if you have old drums, and they are servicable still, then you'll want to keep them. Turn them if they are warped, but they are a million times better than the junk ones you'll get if you get new ones.
Absolutely 100% true. I bought the best quality drums I could find when I did mine and I still ended up with one that's out of balance and shimmies terribly at 35mph
__________________
CURRENT
'50 GMC 100 shortbed Gen IV 4.8 LS - 4L65E (Secret truck, Shhh!!!) Build
'63 Buick Wildcat Coupe 401ci Nailhead (Very much in pieces) Photos
'66 Impala SS convertible 327-QJet-glide (4 speed swap one of these days...) Photos
'69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!)
'72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh
'99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily)
'99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs)
SOLD
'71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder)
JJorgensen52 is offline   Reply With Quote
Old 07-12-2011, 08:42 AM   #7
NC67Chev
Senior Member
 
NC67Chev's Avatar
 
Join Date: Oct 2009
Location: Greensboro, NC
Posts: 698
Re: Upgrade to power drum brakes

I might suggest replacing or rebuilding the wheel cylinders as well. I also ended up having to replace my lines because the they were pretty corroded. One of the small lines completely fell apart pretty much as soon as I touched it.
__________________
1967 Chevy C-10, 250 L6, Powerglide, 3.73, SWB, Fleetside

Upgrades: Power steering, Offset air cleaner, Rear Sport bumper, 3 point safety belts, HEI, -1/-2 springs, 16x5 wheels, McGaughy's disc brake conversion, Sway bar
NC67Chev is offline   Reply With Quote
Old 07-12-2011, 05:36 PM   #8
gotmud
Registered User
 
gotmud's Avatar
 
Join Date: Oct 2003
Location: Cumming, Ga
Posts: 234
Re: Upgrade to power drum brakes

Quote:
Originally Posted by dmack91 View Post
Best mod I did to my truck. Takes about an hour if you have everything. Best tip is to disconnect and reconnect the rod to the pedal arm before the booster is bolted in. This drops the pedal low enough that you don't have to fight (drop) the steering column.

Here is a link to the FAQ on the swap: http://67-72chevytrucks.com/vboard/s...ht=power+brake
I looked at GMC Pauls to see if he had a kit and he does. Do you know the pros \ cons of the 7 vs 9 inch kit? Why would you want one over the other?

http://www.gmcpauls.com/Brakes&Steering.htm
__________________
Glenn
Cumming, Ga
(68 C/10 Fleetside LWB 307
(64 C/10 Fleetside Shorty Custom 350, with 73 donor parts aplenty)
(2001 Porsche Boxster S - 168 MPH of fun)
(2005 Chevy Avalanche Z71 1500)
gotmud is offline   Reply With Quote
Old 07-12-2011, 10:19 PM   #9
Longhorn Man
its all about the +6 inches
 
Longhorn Man's Avatar
 
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
Re: Upgrade to power drum brakes

wheel cylinders are cheap and I have yet to see a quality control issue personally. I'd buy new.
Longhorn Man is offline   Reply With Quote
Reply

Bookmarks


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 06:15 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com