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71 cuda Brake upgrade Questions #1313014
09/30/12 12:31 AM
09/30/12 12:31 AM
Joined: Sep 2008
Posts: 201
Rome, Ga
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sbhpcb Offline OP
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sbhpcb  Offline OP
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Rome, Ga
I have a 71 cuda. Front disc brakes is the Question. I plan to run 15 inch wheels. Will the spindles, rotors, calipers etc. work well from a 78 Cordoba? I currently have a complete donor car. What Brake booster and Master clyshould I use? am using a 5.7 Hemi with a T56 six speed. The cuda is not anything like a numbers car. I want a dependable Driver. I am not a fan of most any aftermarket Kits or parts.

Re: 71 cuda Brake upgrade Questions [Re: sbhpcb] #1313015
09/30/12 12:54 AM
09/30/12 12:54 AM
Joined: Feb 2010
Posts: 18,493
Granite Bay CA
Kern Dog Offline
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Granite Bay CA
Pretty simple, really. The short answer is... YES, the donor car parts will work. I usually omit the thin dust shields though since they retain heat. You'll need a front end alignment afterwards. If you're willing to run a power system, 73-76 A body cars used boosters that will bolt up. I have one in my 70 Charger. The master cylinder in my car is originally for a mid 70s Dart with front disc brakes. If you are willing to have manual disc brakes, you can use a Master Cylinder for a NON power 75 Dart with front discs.
Good luck.

Re: 71 cuda Brake upgrade Questions [Re: Kern Dog] #1313016
09/30/12 06:44 PM
09/30/12 06:44 PM
Joined: Feb 2012
Posts: 4,463
Morristown Tn.
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71birdJ68 Offline
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Morristown Tn.
I have a question. I was doing the same thing with a 71 B body, and had a set of Diplomat spindles. I had already bought the 71 repo discs,which are U.S. made and are far better than the chinaman A body discs, but wont work with the Diplo spindles, so I found a set of 71 spindles and went that way instead.So my question is just how critical is the extra height of those spindles compared to the 71 spindles.Some people use them, and some say not to, has anybody come up with a researched answer. Diplomat set up is about half the price compared to the 71 setup. Just curious? Now I have a 75 Dart with power brakes, and the booster set up is completely different than a 71 E/B body, if looks matter to him.

Re: 71 cuda Brake upgrade Questions [Re: 71birdJ68] #1313017
09/30/12 09:07 PM
09/30/12 09:07 PM
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WA
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pro451bee Offline
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Diplo spindles do wack the factory bump-steer some ,and to me that is going backwards on a handling car.

Re: 71 cuda Brake upgrade Questions [Re: pro451bee] #1313018
09/30/12 11:37 PM
09/30/12 11:37 PM
Joined: Feb 2012
Posts: 4,463
Morristown Tn.
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71birdJ68 Offline
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71birdJ68  Offline
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Thanks ,the reason I asked is that some people use those spindles, and I read the Mopar Action article that says not to use them,so the OP needs to choose which he wants to use.I went on Ricks advise not to use them. If he goes the 71 rout he needs to know the difference in the different parts.He needs the E body spindles or 71-72 B body spindles,calipers and the rotors. There are I think 2 companies that are making these rotors and they are US made, but around $170 a piece. Or if I'm right and correct me please, the late A body spindles which allow the cheap chinaman rotors ect.

Re: 71 cuda Brake upgrade Questions [Re: 71birdJ68] #1313019
10/01/12 11:49 AM
10/01/12 11:49 AM
Joined: Jan 2003
Posts: 5,394
Pikes Peak Country
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TC@HP2 Online content
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Quote:

So my question is just how critical is the extra height of those spindles compared to the 71 spindles.Some people use them, and some say not to, has anybody come up with a researched answer.






The topic has been discussed extensively over the preceeding decade.

Bill Reilly, of Alterkation fame, did do a critical analysis of the differences on a mocked up front end. Results showed that in the normal range of motion, there is no appreciable difference in bump steer. Out in the extreme end of range of travel, the taller spindles do create an additional .02 of bump steer in extension and improved bump of .02 in compression. They also showed an improved camber gain over the same range of motion which will do a better job of keeping the tire tread in contact with the ground.
Details are here: http://www.bigblockdart.com/techpages/spindles.shtml

Two additional positive aspects of the tall spindles are improved spindle axis inclination, which will improve return to center behaviour and high speed stability and lighter weight with the tall spindle actually being a couple pounds lighter than the earlier style shorter spindle.







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