Disc Brake Conversion

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Old Dec 7, 2010 | 10:00 AM
  #1  
71KUTLASS's Avatar
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Disc Brake Conversion

Hi i am new to the site as well as new to my olds 72 cutlass. Im looking to redo the front brakes over the winter. Summit racing has a few different packages to choose from... What i need is sugeestions, recommendations horror stories etc. i have posted a couple links to the kits i was looking at... I just bought a new house so im trying not to break the bank on this purchase. Thanks

http://www.summitracing.com/parts/SUM-BK1201/

http://www.summitracing.com/parts/SUM-BK1202/

http://www.summitracing.com/parts/RSD-AFXDC01C/

http://www.summitracing.com/parts/WIL-140-10996/
Old Dec 7, 2010 | 11:14 AM
  #2  
Ranzan's Avatar
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I just put this Kit on.......

http://www.getdiscbrakes.com/RSeComm...source=popular

I would deal direct with the Right Stuff
Old Dec 7, 2010 | 11:23 AM
  #3  
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Ben
 
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Originally Posted by Ranzan
I just put this Kit on.......

http://www.getdiscbrakes.com/RSeComm...source=popular

I would deal direct with the Right Stuff
x2


They likely still have a kit w/ non power brakes if you want to save a few bucks, but for the $$, you cannot beat these kits that come with everything.
Old Dec 8, 2010 | 05:31 AM
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71KUTLASS's Avatar
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Ok thanks! I had that same kit in my wish list. How is the car braking now? Also how did the install go? Any Hiccups?
Old Dec 8, 2010 | 06:31 AM
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71 I don`t know how they brake I just finished assembly on my frame

as far as ease...... 1/2 hour each side and done direct bolt on

if you have stock exhaust you can keep the prop valve on the frame if not they offer the mounting point up at the master cylinder kit as well which I ended up getting

if you click on my build link in my sig you can see how the system looks on the frame

Good luck
Old Dec 8, 2010 | 11:26 PM
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Originally Posted by Ranzan
I just put this Kit on.......

http://www.getdiscbrakes.com/RSeComm...source=popular

I would deal direct with the Right Stuff
Looks like the 1979 Vette Disc/Disc master I put in both my cars is included.

If you're spending the money, bigger brakes = faster stopping.
You have much bigger rims on that car......
Plus you're competing with much more modern braking systems on the road in a 3800lb vehicle.

If you want to spend a wee bit more
The C5 Z51 front 40.5mm piston and 13" rotor front brake upgrade is much better.
OR......this kit which has 60% more stopping power (52mm) over even the C5 setup
http://www.ecklerschevelle.com/cheve...1964-1972.html

Obviously not a COMPLETE kit like above.

Last edited by Aceshigh; Dec 8, 2010 at 11:40 PM.
Old Mar 31, 2011 | 02:03 PM
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Originally Posted by Ranzan
I just put this Kit on.......

http://www.getdiscbrakes.com/RSeComm...source=popular

I would deal direct with the Right Stuff
What size rims are you running?

I put the factory 14s back on but the recommended wheel size for that conversion kit is of course 15. I downloaded the manual for the kit. It states that you can use a 14 inch rim if the rim was on a car that originally had disc brakes. Is there a difference in olds rallys? i know some cutlass's came with disc brake in the front.
Old Mar 31, 2011 | 09:42 PM
  #8  
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Originally Posted by 71KUTLASS
Is there a difference in olds rallys? i know some cutlass's came with disc brake in the front.
yes there is a difference.
Old Apr 1, 2011 | 06:04 AM
  #9  
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my car is running 15 cragers I don`t have a set of rallys to check with
Old Apr 1, 2011 | 07:41 AM
  #10  
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Originally Posted by 71KUTLASS
Is there a difference in olds rallys? i know some cutlass's came with disc brake in the front.
Olds never made "rally" wheels. That's a Chevy thing. Olds Super Stock I wheels DID come in disk and non-disk versions. Only the newer ones (1970-up) clear disk brakes.

On the other hand, ALL Super Stock II/III wheels in all factory-offered sizes clear FACTORY disk brakes on A-body cars. No guarantee that they will clear aftermarket kits, especially if these kits use calipers that are different from stock. Many of these kits use the later metric calipers with the 2 5/16" pistons. Stock calipers for the A-body cars through 1977 used 2 3/4" pistons.
Old Apr 15, 2011 | 09:03 PM
  #11  
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i just orderd these... in the process of puttin in now really easy on the bank too and come pre assebled too so ill take some pics tomarrow of what i got still in box and post
only thing took a couple of weeks to get put together and shipped
http://www.mpbrakes.com/products/product-detail.cfm?product_id=418
Old Apr 16, 2011 | 12:22 AM
  #12  
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A few years ago I put the DBK 6904 from http://www.inlinetube.com/ they fit with the stock 14" SSII wheels and the distribution block fits in the original location on the frame even with headers stops great even though some of the parts are overseas, kit was complete , This is a Factory appearing kit and even has the Hold off valve that mounts near the Master cylinder for the front Discs

Last edited by Lalo442; Apr 16, 2011 at 12:40 AM.
Old Jun 21, 2011 | 12:38 PM
  #13  
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scarebird.com this kit is the cheapest and the best bang for your buck its asomme i put it on my 64 f85
Old Jun 21, 2011 | 12:51 PM
  #14  
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i just bought a Right Stuff front conversion kit...11" drilled/slotted rotors, 9" power booster, master cylinder, hardware, spindles, powdercoated calipers, & a complete brake line kit...all for $825 delivered to my door.
Old Jun 21, 2011 | 01:10 PM
  #15  
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Originally Posted by 6t4fat5
scarebird.com this kit is the cheapest and the best bang for your buck its asomme i put it on my 64 f85
I'm sorry, but I don't understand the attraction. The stock A-body disks are 10.75" diameter, use calipers with larger pistons (for more braking force), and were factory available with 14" wheels. You can modify your stock drum spindles by simply machining down the boss for the upper bolt, turning them into "disk" spindles. The repro caliper brackets and splash shields are available everywhere, and the rotors, calipers, and hoses are available from any parts store. You get a factory-engineered braking system for less money.
Old Jun 26, 2011 | 12:40 AM
  #16  
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Rockett
 
Joined: Jun 2011
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From: Greenville, TX
Is a disc conversion worth the time/money? I'm considering doing it, but I don't know if it really is that big of a deal.
Old Jun 26, 2011 | 05:17 AM
  #17  
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For me, it was worth it, the braking improved dramatically it seemed like with drum brakes always had to give myself extra space between cars when driving . Living in the inner City Chicago with traffic when I did the conversion feels like I am driving a more modern car especially in the braking department ...
Old Jun 26, 2011 | 05:26 AM
  #18  
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Rockett
 
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From: Greenville, TX
Good to know. I live in rural Texas... But my right foot is longer than my left, so it might be a good idea for me.
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