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Old 12-05-2007, 04:37 PM   #1
Magnuman
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Rear Brakes

Has anyone used this compnay to convert the rear to disk brakes on a 4wd?
It shows as 2wd but they make it for a 4wd also.
Are disks in the rear a big improvemet on the 71 Blazer?
http://www.mpbrakes.com:80/products/...product_id=483

Last edited by Magnuman; 12-05-2007 at 04:37 PM.
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Old 12-05-2007, 06:01 PM   #2
red71cheyenne
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Re: Rear Brakes

I know a few of the guys have used Blackbird Customs. I am going to go with them when I do the C10 and the K5. They are about 1/2 that much as well.
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Old 12-05-2007, 06:10 PM   #3
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Re: Rear Brakes

www.blackbirdscustomtrucks.com

Took me a while to find the website.
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Old 12-05-2007, 07:20 PM   #4
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Re: Rear Brakes

Thanks.
I just ordered the kit from Blackbird.
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Old 12-08-2007, 09:02 PM   #5
red71cheyenne
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Re: Rear Brakes

Post some pics when you get them and after you install!
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2010 2SS/RS Flaming Orange Camaro
2011 K1500 Suburban
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2008 Nissan Altima? The wifes' hoopty
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Old 12-12-2007, 05:38 PM   #6
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Re: Rear Brakes

Yeah... let us know how they work. Do you need to upgrade your brake booster, master cylinder, or install a manual proportioning valve?
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Old 12-12-2007, 06:20 PM   #7
Magnuman
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Re: Rear Brakes

Quote:
Originally Posted by Green Monster View Post
Yeah... let us know how they work. Do you need to upgrade your brake booster, master cylinder, or install a manual proportioning valve?
I had to get a different proportioning valve for the four wheel disc brakes. The part number from CCP is PVKS-4 for the disc/disc valve.

The master cylinder unit in the blazer now is 6772BB2.
The master cylinder needed to be a 1 1/8" bore for disc/disc.

I need to check and make sure I have an 1-1/8" bore.
I have currently disks in the front and drums in the rear.
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Old 12-12-2007, 07:48 PM   #8
red71cheyenne
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Re: Rear Brakes

I tried looking on CPP's website, but it doesn't give you the bore on that master. You'll have to call them I guess to find out if its actually 1-1/8", unless someone has already found that out. Sounds like it's going to be a sweet Mod! Can't wait to see some pics...(hint,hint).
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1969 K5 Blazer w/Tuned Port
2010 2SS/RS Flaming Orange Camaro
2011 K1500 Suburban
2014 K1500 Pickup
2008 Nissan Altima? The wifes' hoopty
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Old 12-13-2007, 01:47 AM   #9
Magnuman
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Re: Rear Brakes

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Originally Posted by red71cheyenne View Post
I tried looking on CPP's website, but it doesn't give you the bore on that master. You'll have to call them I guess to find out if its actually 1-1/8", unless someone has already found that out. Sounds like it's going to be a sweet Mod! Can't wait to see some pics...(hint,hint).
You need to tell them the diameter of your booster. As soon as I do that they will let me know what size the the bore is.
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Old 12-13-2007, 08:18 AM   #10
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Re: Rear Brakes

In reality, rear disc brakes on blazers or trucks is a ho-hum. If the stock disc/drum's are working correct, they are fine. The 99-2005 went disc/disc with lots of advertising but they went back to rear drum with NO mention in their ads. The emergency brake on rear discs is usually crap. So, they look cool, work ok but don't expect a quantaum leap in brake performance. Now fronts is a different story. Huck
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