Register or Log In To remove these advertisements. |
|
|
|
Thread Tools | Display Modes |
|
08-03-2024, 08:19 PM | #1 |
All stock and staying that way
Join Date: Jul 2003
Location: Elkland, PA
Posts: 1,584
|
Re: Questions about brakes on a 1969 k5 4x4
There were a couple of things that I absolutely hated about driving my 1970 Blazer. One was the accelerator pedal that would fall off if you looked at it cross eyed, and the other was the front drum brakes. The braking effectiveness was mediocre at best, and more often times than not the thing would pull to either side. During the restoration, I have addressed both. Both designs were updated to 1971/72. Should not be hard to convert it over. The parts are still plentiful and will solve your poor braking.
__________________
1970 K/5 Blazer CST 4WD, Medium Bronze, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Currently frame off restoration finally getting close to completion.. 1972 Cheyenne Super 20 2WD, DK Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 45k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 62k miles, 3.6, 8L45, 3.23 LS, 18" wheels |
08-04-2024, 02:38 AM | #2 |
Registered User
Join Date: Feb 2013
Location: Ojai, CA
Posts: 361
|
Re: Questions about brakes on a 1969 k5 4x4
I’m cool with upgrading to disc brakes if it’s an easy swap . Car will see daily driving use so power disc brakes would be worth doing .
|
08-04-2024, 06:43 AM | #3 |
Registered User
Join Date: Apr 2008
Location: Md
Posts: 2,478
|
Re: Questions about brakes on a 1969 k5 4x4
I agree with upgrading to disc brakes, didn't want to suggest changing out original parts. I have no experience with 4x4 drum brakes up front. Those with similar trucks can possibly suggest compatible axle swap or kits to get it done. GM 6 lug axles were used thru the 80's..I tried a Classic industries booster master combo....looked wrong, tilted down and leaked....my better choice was 3/4 ton booster and master cylinder from 83-84 Chevy 1500....disc / drum combo. Works well...Good luck.
__________________
http://67-72chevytrucks.com/vboard/s...d.php?t=635605 |
08-04-2024, 08:21 AM | #4 |
Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,523
|
Re: Questions about brakes on a 1969 k5 4x4
I made my own disc brake conversion for my70 and still retained the 70 axle and hubs. It was a fairly easy swap, but some fabrication/machining is required.
|
08-07-2024, 10:30 AM | #5 |
Senior Member
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,628
|
Re: Questions about brakes on a 1969 k5 4x4
While your in there
I would strongly recommend a hydro boost, it will put you into the windshield, if you’re not careful Brake lines tend to rust, I went with braided SS, and ni cop tubing, easy to work with I can takes of my stock brake components as a guide for what you need if it helps
__________________
Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
08-07-2024, 07:53 PM | #6 | |
Registered User
Join Date: Mar 2015
Location: Ontario Canada
Posts: 1,523
|
Re: Questions about brakes on a 1969 k5 4x4
Quote:
Hydroboost should only be used on diesels and boosted engines IMO. |
|
08-08-2024, 08:58 AM | #7 | |
Senior Member
Join Date: May 2006
Location: Philadelphia, Pa. 19454
Posts: 9,628
|
Re: Questions about brakes on a 1969 k5 4x4
Quote:
Good point though didn’t think of that
__________________
Semper Fi...Uncle Sam, you da man All parts offered to help are free, unless otherwise noted Dont try this stuff in my build thread, unless you have 55 years of mechanical OTJ training SAFETY FIRST AS usual, off topic They say your mind goes second, can't remember the first Jim |
|
Bookmarks |
|
|