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Combination of Brake Parts #2590074
12/10/18 09:36 PM
12/10/18 09:36 PM
Joined: Jan 2003
Posts: 10,498
Chicago, Illinois
Devil Offline OP
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Devil  Offline OP
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Ok, so I've done a lot of thinking about the brakes on my 1971 Challenger. It currently has stock 10.95" Disk Brakes on it. For what I'm going to do I am upgrading.

Reading through some of the old Chrysler Manuals and odds and ends, I've come up with a hodgepodge of brake parts I think will work pretty well.

73-76 A-body Disk Brake Spindles
78 Dodge Monaco (B-body) Cop Car 11.75 pin style caliper mounts
78 HD Disk Brake Rotors
71 Disk Brake Calipers

With this I think I should get the benefits of the pin style brakes, but with the larger 11.75" rotors, for not a lot of money. What do you think?




Re: Combination of Brake Parts [Re: Devil] #2590106
12/10/18 10:30 PM
12/10/18 10:30 PM
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Oregon
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AndyF Offline
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That is the classic Mopar Action 11.75 swap. The only thing you have to watch out for with the pin calipers is the brake hose routing. There aren't as many good choices for the pin caliper as the slider.

Since you have a '71 E body you should have the anti-sway bar mounted in the middle of the LCA which means you can front hang the calipers. I assume your hose bracket on the frame is behind the spindle so that should work for hose routing. Your existing hoses might work okay, just have to double check to see if they are long enough. If not you'll need to find a set of hoses with the same ends but 1/2 inch longer.

Re: Combination of Brake Parts [Re: Devil] #2591306
12/13/18 02:07 PM
12/13/18 02:07 PM
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central CT
cudazappa Offline
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since you're just updating the stock brake system, it can get a wee bit easier if your ball joints are in good shape.

Take your new pin type caliper adapters, and the late B-rotor.

Don't swap spindles, buy the bearing spacer from dr. diff. Now you don't need to pop the upper ball joint and the swap can be done in the time it takes to do a brake job. The only caveat is that the 71 dust shield won't work with the late B brakes. (this would be true even if you swapped spindles.

This is what I did on my 71 challenger and put hundreds of trouble free miles and several dozen autocross laps with no issue.


1971 Challenger
Re: Combination of Brake Parts [Re: cudazappa] #2591313
12/13/18 02:16 PM
12/13/18 02:16 PM
Joined: Jan 2010
Posts: 1,440
NW Chicago suburban area
Mopar Mitch Offline
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I recently completed my 11.75 swap (keeping the pin calipers, and replacing the caliper brackets as needed). I also swapped to the A-body spindles with the larger bearings... in retrospect, I should have just purchased the Dr Diff sleeves... and saved $$$ and time.

Car is not yet driving pending new engine in the works.


Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: Combination of Brake Parts [Re: Devil] #2592085
12/14/18 10:15 PM
12/14/18 10:15 PM
Joined: Jan 2003
Posts: 10,498
Chicago, Illinois
Devil Offline OP
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Devil  Offline OP
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It's a bit different then the original, where they mostly recommend going to the easier sliding style caliper.

And I thought about keeping the smaller bearings, and getting the spindle sleeves, but I've heard both good and bad about those. And if it was just going to be a fun time cruiser I would probably just go with that. But since I intend to beat on this thing, I want the reassurance of the bigger bearings. And I mean beat on it.

Re: Combination of Brake Parts [Re: Devil] #2593928
12/18/18 07:57 PM
12/18/18 07:57 PM
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NW Chicago suburban area
Mopar Mitch Offline
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As for the reliability and durability of the smaller bearings, I wouldn't be concerned as I've raced very hard for 30+ years of actual competition pylon autocrossing (SCCA, etc), as well as recent years of very hard hi-speed road course events (HSAX/HPDE). When I've just now taken the old small bearings out, they still looked excellent and didn't have any problems.

The larger bearings are perhaps better for extended durability, but I've had no problems with the smaller bearings from very hard racing (AX/HSAX/HPDE)/driving.

Last edited by Mopar Mitch; 12/18/18 07:58 PM.

Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: Combination of Brake Parts [Re: Devil] #2596886
12/25/18 07:30 PM
12/25/18 07:30 PM
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Posts: 1,401
northeast ohio
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hulmule Offline
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My questions
My son's cuda had drum brakes on front. Switching over to disc. I found a set of spindles but don't what they came off. They have the 11" rotors on them now. Have a pair of pin style brackets, but with only one slider style bracket. I see Dr. Diff sell brackets, so i can sell the pair of pins and one slider bracket and buy a new pair of slider brackets. Am i thinking correctly
with buying slider brackets and calipers for easier installation. I also see he sells drilled /slotted rotors unless we can buy they cheaper elsewhere??
What can i do with the old drums, spindles etc??

Thanks


1969 Dodge Coronet R/T Convertible
1979 LiL Red x2
2012 Yellow Jacket
2006 mega cab
1977 Trailduster
1979 Trailduster
Re: Combination of Brake Parts [Re: hulmule] #2597012
12/26/18 02:14 AM
12/26/18 02:14 AM
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Oregon
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AndyF Offline
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Post a picture of what you have. There are a lot of 11 inch rotor setups and only some of them are the big bearing type which can be upgraded. Some of the 11 inch setups are worth money but most of them aren't.

Re: Combination of Brake Parts [Re: Devil] #2601739
01/04/19 11:56 PM
01/04/19 11:56 PM
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Brisbane Australia
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crash520 Offline
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Anyone know of a set of pin type brackets around at a price that’s reasonably fair??

Re: Combination of Brake Parts [Re: crash520] #2601928
01/05/19 03:07 PM
01/05/19 03:07 PM
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AndyF Offline
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Originally Posted By crash520
Anyone know of a set of pin type brackets around at a price that’s reasonably fair??


Pin type brackets are scrap around here so basically free. I threw about 50 lbs of them away recently when cleaning out my shop.

Re: Combination of Brake Parts [Re: AndyF] #2602001
01/05/19 06:30 PM
01/05/19 06:30 PM
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Brisbane Australia
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crash520 Offline
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Originally Posted By AndyF
Originally Posted By crash520
Anyone know of a set of pin type brackets around at a price that’s reasonably fair??


Pin type brackets are scrap around here so basically free. I threw about 50 lbs of them away recently when cleaning out my shop.

For the 11.75” rotors??!!

Re: Combination of Brake Parts [Re: Devil] #2606255
01/14/19 01:13 AM
01/14/19 01:13 AM
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northeast ohio
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hulmule Offline
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I have a set , whats the difference between those and slide ?? changing over a E body.


1969 Dodge Coronet R/T Convertible
1979 LiL Red x2
2012 Yellow Jacket
2006 mega cab
1977 Trailduster
1979 Trailduster
Re: Combination of Brake Parts [Re: Devil] #2607842
01/17/19 12:04 AM
01/17/19 12:04 AM
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Brisbane Australia
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crash520 Offline
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The type of caliper one is belt on with two pins that screw through the bracket and the caliper floats on the pins, the other the caliper slides into the bracket basically







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