Refurbish drumbrakes rear el camino 1971 - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 37 (permalink) Old Jun 23rd, 20, 7:09 AM Thread Starter
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Refurbish drumbrakes rear el camino 1971

if i want to rebuild my stock rear drum brakes. I want to renew everything except for the drum it self and the backing plate.

I find 2 or 3 hardware kits at summit. But dont know exactly which parts i need

Thnx in advance
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post #2 of 37 (permalink) Old Jun 23rd, 20, 7:50 AM
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Re: Refurbish drumbrakes rear el camino 1971

Get new wheel cylinders while you are at it. I bought the kits but found that the original rear brake drum springs and other parts were superior to anything in a modern rebuild kit.

So I media blasted and repainted everything that was original and better and reused them. Same for my rear drums. Plenty of steel thickness remained. The hardest part of this job was getting the rusty drums removed. Second hardest part was remembering where each spring hooked onto and how to hook them.

Take LOTS of pictures after the drum comes off but BEFORE removing any brake parts.

Rick

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post #3 of 37 (permalink) Old Jun 23rd, 20, 8:42 AM
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Re: Refurbish drumbrakes rear el camino 1971

NAPA. Wheel cylinders, brake shoes, rubber brake lines, & a hardware kit (includes all the springs & retainers).
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post #4 of 37 (permalink) Old Jun 23rd, 20, 11:58 AM
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Re: Refurbish drumbrakes rear el camino 1971

Do not change the brake adjuster rod with the one supplied in those kits, its usually the wrong length. I like to reuse the old springs if they are in good shape because as stated above are usually better than whats in those kits. And finally new wheel cylinders are cheap. Good quality brake shoes like Wagner or Raybestos work well.
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post #5 of 37 (permalink) Old Jun 23rd, 20, 12:55 PM
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Re: Refurbish drumbrakes rear el camino 1971

Here's a few photos from my 70
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post #6 of 37 (permalink) Old Jun 23rd, 20, 1:33 PM Thread Starter
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I already took of the drums before so that will be easy.

So if i understand correctly, get new brake shoes and a wheel cilinder. I should not considering buying any new springs unless the current once are busted..

Other thing, why are people finding it hard or difficult to bleed and get air out of the brake system? Because that will be required when installing new brake cilinders
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post #7 of 37 (permalink) Old Jun 23rd, 20, 1:52 PM Thread Starter
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Quote:
Originally Posted by 69SS454 View Post
NAPA. Wheel cylinders, brake shoes, rubber brake lines, & a hardware kit (includes all the springs & retainers).
Why rubber brake lines? For 34dollar i get stainless steel lines for the rear axle.
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post #8 of 37 (permalink) Old Jun 23rd, 20, 2:12 PM
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Re: Refurbish drumbrakes rear el camino 1971

I would only replace the wheel cylinders if they are leaking. No need to mess with normally. If the rubber hose that connects the body brake line to the brake line on the differential is cracked, then I would replace that. Otherwise, just get shoes and a hardware kit. Have the drums machined at a competent shop, put everything back together, adjust the shoes, and away you go.
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post #9 of 37 (permalink) Old Jun 23rd, 20, 3:11 PM
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Re: Refurbish drumbrakes rear el camino 1971

My local supplier (Carquest/Advance) show two different hardware kits depending on what size shoes you have . So you need to know that before you order hardware etc. Personally I would get it local so you can compare it to what you have now and exchange it easily if it isnt right.
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post #10 of 37 (permalink) Old Jun 23rd, 20, 3:34 PM Thread Starter
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Originally Posted by 1971-Chevelle View Post
I would only replace the wheel cylinders if they are leaking. No need to mess with normally. If the rubber hose that connects the body brake line to the brake line on the differential is cracked, then I would replace that. Otherwise, just get shoes and a hardware kit. Have the drums machined at a competent shop, put everything back together, adjust the shoes, and away you go.
On summit i found the attached once.
Are these actually the lines running over the rear end or is this what you refer to "rubber hose that connects the body brake line to the brake line on the differential"

I couldnt find other brake lines at summit and for sure they arent rubber.
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post #11 of 37 (permalink) Old Jun 23rd, 20, 3:44 PM
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Re: Refurbish drumbrakes rear el camino 1971

Quote:
Originally Posted by Bart Fransen View Post
On summit i found the attached once.
Are these actually the lines running over the rear end or is this what you refer to "rubber hose that connects the body brake line to the brake line on the differential"

I couldnt find other brake lines at summit and for sure they arent rubber.
This is the hose for my '71 (since we don't know what year yours is - you might update your information):

https://www.autozone.com/brakes-and-.../773747_0_1903

This hose connects the steel line that runs from the front of the car to the steel line that is on the differential housing. It has to be flexible, as it moves with the differential housing when the suspensions expands/compresses.

I highly doubt that you need to replace the steel line on the differential housing - the rubber hose is what usually goes bad (unless you live in the rust belt).
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post #12 of 37 (permalink) Old Jun 23rd, 20, 3:55 PM Thread Starter
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Quote:
Originally Posted by 1971-Chevelle View Post
Quote:
Originally Posted by Bart Fransen View Post
On summit i found the attached once.
Are these actually the lines running over the rear end or is this what you refer to "rubber hose that connects the body brake line to the brake line on the differential"

I couldnt find other brake lines at summit and for sure they arent rubber.
This is the hose for my '71 (since we don't know what year yours is - you might update your information):

https://www.autozone.com/brakes-and-.../773747_0_1903

This hose connects the steel line that runs from the front of the car to the steel line that is on the differential housing. It has to be flexible, as it moves with the differential housing when the suspensions expands/compresses.

I highly doubt that you need to replace the steel line on the differential housing - the rubber hose is what usually goes bad (unless you live in the rust belt).
I see, perfect.

Where can i update my car information? Sorry i am new around here
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post #13 of 37 (permalink) Old Jun 23rd, 20, 4:08 PM
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Re: Refurbish drumbrakes rear el camino 1971

Quote:
Originally Posted by Bart Fransen View Post

Where can i update my car information? Sorry i am new around here
It's been so long since I have done it that I can't remember. Hopefully a site moderator will chime in with how to do it.

1971 Malibu, factory buckets/full gauges/console, 377 roller cammed small block, Turbo 400, 3.42 10 bolt posi (Buick), - All your base are belong to us.
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post #14 of 37 (permalink) Old Jun 23rd, 20, 10:25 PM
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Re: Refurbish drumbrakes rear el camino 1971

Bart, at the top left corner of the page, click on usercp and take it from there!!

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post #15 of 37 (permalink) Old Jun 23rd, 20, 11:05 PM
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Re: Refurbish drumbrakes rear el camino 1971

There is no reason to resurface the drums unless they are not true causing a vibration when you brake.
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