4 wheel disc brake conversions - anybody do one? - Chevelle Tech
Brakes, Suspension & Steering Conversion questions & more.

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post #1 of 10 (permalink) Old Sep 11th, 19, 10:41 AM Thread Starter
 
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4 wheel disc brake conversions - anybody do one?

Hi I picked up a complete 4 wheel disc brake conversion kit for a 1969 Chevelle at a swap meet - - with NO instructions.

Anybody done one of these? Can you offer advice, etc on how to change the back spindles? What Brake fluid did you run?

*Also read somewhere that 454's don't put out enough brake pressure and you can add some kind of brake pressure booster??
Thanks!
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post #2 of 10 (permalink) Old Sep 11th, 19, 10:44 AM
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Matt
 
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Re: 4 wheel disc brake conversions - anybody do one?

Which brand is the conversion kit? Usually you can find something online for instructions if none were included.

Years ago I did one from CPP. It was pretty straight forward. But I also had instructions!

Do you have a booster on the car now, or is it 100% manual breaks? If you do have a booster, unless you're dealing with some sort of performance built engine, I'd think you'll have enough vacuum to operate the booster fine.

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post #3 of 10 (permalink) Old Sep 11th, 19, 4:14 PM
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Kevin
 
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Re: 4 wheel disc brake conversions - anybody do one?

I bought mine from Baer and it had instructions but the swap is pretty straight forward. If you don't have a booster, I would add one. I have a pretty performance based engine and the vacuum is fine. Huge cams reduce vacuum and can cause challenges but in most cases you will be fine.
As far as the rears go, your remove the brakes and backing plate bolt on the adapter, put the rotor on and bolt up the caliper. In most cases you will have to remove the rear axles but that is easy as well. E-Brakes vary, some are internal (like a mini drum brake) and some just hook up to the stock cables.
As mentioned above, instructions should be available online.

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post #4 of 10 (permalink) Old Sep 11th, 19, 5:26 PM Thread Starter
 
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Re: 4 wheel disc brake conversions - anybody do one?

Thanks All.
This is pretty much a China kit. And haven't been able to locate any instructions online.
I know I have to remove the rear axles to get the spindles on, and that kinda scares me.

If anyone has suggestions of DO's or DON'Ts on how to remove the rear axles...I'd sure like to hear. Thanks again!
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post #5 of 10 (permalink) Old Sep 11th, 19, 11:09 PM
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Ben
 
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4 wheel disc brake conversions - anybody do one?

Id post pics of what you have. May be a fairly common design and someone could point you to instructions.
And your location.

No car yet; currently looking for 66-69 project/driver.
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post #6 of 10 (permalink) Old Sep 12th, 19, 2:14 AM
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Re: 4 wheel disc brake conversions - anybody do one?

There are no spindles in the back. do you mean caliper brackets? or what?

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post #7 of 10 (permalink) Old Sep 12th, 19, 9:16 AM
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Re: 4 wheel disc brake conversions - anybody do one?

Quote:
Originally Posted by Thunderbolt13 View Post
Thanks All.
This is pretty much a China kit. And haven't been able to locate any instructions online.
I know I have to remove the rear axles to get the spindles on, and that kinda scares me.

If anyone has suggestions of DO's or DON'Ts on how to remove the rear axles...I'd sure like to hear. Thanks again!
Removing the rear axles isn't all that bad. It was a first for me as well when I did it, it goes pretty smoothly.

Do's or Dont's are very much going to depend on your car and the kit. What I would say is do have a clean place to do this at. I did mine in an asphalt driveway in the dead of summer. It was......not a lot of fun. Do have at least two jack stands and a decent jack. Also, DO be ready to safely decompress the front springs if you need to change out that front spindle. That's the part that always makes me pucker a little.

Also, be sure the rears are aligned properly once you get them on there. Mine were a bit off and they rubbed all the time. I had to adjust the bracket back there a bit to make them work.

If you get stuck, post up here for some advice. And pictures are worth 1000 words sometimes.
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post #8 of 10 (permalink) Old Sep 12th, 19, 10:05 AM
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Re: 4 wheel disc brake conversions - anybody do one?

look up right stuff detailing. that is where my kit came from. they have all kinds of instructions/videos online. if it has the cadillac style rears with emergency brake calipers - very "fun" getting it set up - not!. pretty easy swap though....
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post #9 of 10 (permalink) Old Sep 12th, 19, 11:06 AM Thread Starter
 
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Re: 4 wheel disc brake conversions - anybody do one?

"DO be ready to safely decompress the front springs if you need to change out that front spindle."

Oh mann, didn't know about that one either. Thanks for the heads up!
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post #10 of 10 (permalink) Old Today, 9:38 AM Thread Starter
 
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Re: 4 wheel disc brake conversions - anybody do one?

Quote:
Originally Posted by the heckler View Post
look up right stuff detailing. that is where my kit came from. they have all kinds of instructions/videos online....
Hey Mann - Thanks! Excellent info source!

https://www.getdiscbrakes.com/knowle...r-disc-install

https://youtu.be/PJpC0W6CP78
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