C-Body Front Rotors on 73-Up A, B or E-Body Disk Brake Spindles? Will any fit?

['Cuda_ragtop]

Newbie here..
Greeting and salutations all!

I am a Member of, FABO, FBBO, FEBO and now FCBO...
No C-Body in my stable but hope one of you can help me with a C-Body Front Brake Rotor question.
Maybe someone here has done this before...

Building a 69 Barracuda g3 hemi swap resto-mod.
Car has 73-up, front disk spindles, New Yorker/Cordoba Pin on Calipers/Brackets and 11.75" Rotors
Question is, will any of the big C-Body (1.25" thick) front rotors bolt directly to my 73+ A, B, E, body spindles?

$64,000 question: Will either of these Front Rotors work on my NON C-Body Spindles? Or other C-Body 1.25" thick rotors with 5x4.5" bolt circle?

For 1973 I see Bendix PRT1072 listed as 5x4.5" bolt circle.

For 1974 there is Bendix PRT1146 also 5x4.5" BC. 1974

The project car.

TIA.

Randy D.

 

[FURYGT]

I hope that this helps.

Raybestos Application:

Raybestos R-Line #7018R Brake Rotor & Hub Assy

Fits what vehicles: 1971 Chrysler 300, 1972-1973 Chrysler New Yorker, 1972-1973 Chrysler Newport, 1972-1973 Chrysler Town & Country, 1972-1973 Dodge Monaco, 1972-1973 Dodge Polara, 1973 Plymouth Fury, 1973 Plymouth Fury I, 1973 Plymouth Fury II, 1973 Plymouth Fury III, 1974 Plymouth PB100 Van, 1974 Plymouth PB200 Van, 1975-1981 Dodge Ramcharger, 1975-1980 Plymouth PB100, 1975-1980 Plymouth PB200, 1975-1981 Plymouth Trailduster, 1978 Dodge RD200, 1981 Plymouth PB150, 1981 Plymouth PB250

In 1973 Chrysler started to standardize brake rotors. The 1973 C Bodies started to use the light and medium duty truck styler rotor as indicated by the applications noted above.

Specifications​

Discard Thickness:	1.180
Discard Thickness:	29.950
Mounting Bolt Hole Circle Diameter:	114.300
Mounting Bolt Hole Circle Diameter:	4.500
Mounting Bolt Hole Diameter:	0.600
Mounting Bolt Hole Diameter:	15.250
Mounting Bolt Hole Quantity:	5
Nominal Thickness:	1.245
Nominal Thickness:	31.600
Stud/Lug Hole Quantity:	5

Interchange​

• Accurate: 22441
• ACDelco: 177-549
• Advance Auto Parts: 141072
• American Remanufactured: 789-40000
• AutoZone: 5307
• Bendix: 141072
• Brake Pro: 4617018
• BrakeBest: 7018
• BrakeBest: 7018R
• BrakeBest: 7018RGS
• Brembo: 27090
• Brembo: 09.8039.85
• California Drum & Rotor: 60403
• California Drum & Rotor: 60418
• California Drum & Rotor: 60421
• California Drum & Rotor: 60454
• Casting Numbers: 617018
• Casting Numbers: 53078
• Casting Numbers: 325142
• Casting Numbers: 210155-C
• Casting Numbers: 210670-C
• Centric Parts: 120.67000
• Centric Parts: 121.67000
• Centric Parts: 126.67000SL
• Centric Parts: 126.67000SR
• Centric Parts: 127.67000L
• Centric Parts: 127.67000R
• Century: 7018
• Chrysler: 3683969
• Chrysler: 4086356
• Chrysler: 03683969
• Chrysler: 04086356
• Eurorotor: 5307
• Goodyear: 219-2373
• GREN: 600303
• Guardian: 52-60418
• Hollander: 1438
• Kelsey Hayes: 14568
• MCI: 5014
• Mighty Distributing System: 5307
• Mopar: 3-1362
• Newtek Automotive USA: 5307
• Praefke: 141072
• Qualis: 5307
• Quality Brand: 5307
• Roadmates: 526016
• Rockhill: 5307
• Standard Rotors and Drums: 5307
• UAP: 5307
• Universal: 105070

 

[Darby]

If you think about what you want, disc brakes, you may want to checkout this option. You're wondering about the spindles and possible fitment issues using c-body rotors. 5 years ago there were fewer options for disc brakes, at least that I could find, but I did find this company - Brake Parts Catalog - Engineered Components, Inc. - and purchased the entire 4 wheel 13" cross drilled rotor kit, including the master cylinder. The kit comes with billet hubs and new bearings for the factory spindles. I had to go with 17" wheels, but that was OK, I planned on that anyhow. There are several kits available now, but this could be a good option for you since you're updating the car. I checked out they're offerings and talked to the owner, seemed like a real solid company!

This is what I purchased....

I only have the lines ran in this picture, no tubing nuts yet. They supplied the master cylinder, it's a Mopar, front disc - rear drum that they take apart and remove the orifice for the rear drums, making it a 4-wheel disc master cylinder. It also bolted to my brake booster where the single bowl used to be. The company owner told me I wouldn't need a proportioning valve for this kit in my car ('65 SF), but I installed one anyhow. It would have been pretty difficult to install it later if I thought it needed one. Since it was easy to install at this point, I also installed a line-lock.

The brakes stop the car really well and the pedal feel is awesome!

Good luck with the Barracuda, looks like it's going to be an awesome resto-mod!!!

 

[wyrmrider]

 

[fury fan]

Car has 73-up, front disk spindles, New Yorker/Cordoba Pin on Calipers/Brackets and 11.75" Rotors
Question is, will any of the big C-Body (1.25" thick) front rotors bolt directly to my 73+ A, B, E, body spindles?

[/QUOTE]
66-68 rotors - too expensive, and are <1" thick IIRC.
69-73 rotors - no.
'74-up rotors - I don't know, but I doubt it. I doubt heavy '74-up cars share the same bearing sizes as the smaller cars.
Look at the bearings and see where they are common.

If you do find an interchange, then you need to verify the seal housing fits the rotor you'll use, and the seal lip ID fits the spindle.
Then, if you find a match on all of that, there's always the chance that the distance between inner and outer bearings doesn't match the location of the journals on the spindle.

Then - if you find a rotor that fits and spins properly, you need a caliper to match its thickness.
A-B-E calipers will not fit over a 1.25" rotor.
C-body calipers will not mount to A-B-E caliper brackets.
And C-body brackets won't bolt to the spindles, either.

$64,000 question: Will either of these Front Rotors work on my NON C-Body Spindles? Or other C-Body 1.25" thick rotors with 5x4.5" bolt circle?

I've looked at a BUNCH of rotor possibilities over the last 15 years, for various goals: trying to find a replacement for the then-expensive 69-72 rotors; seeking a small rotor that fits in a 14" wheel; for hat-style rotors that fit on a drum-hub; and for any setup that bolts on a drum spindle using a simple/flat caliper mounting bracket.
I've got LOTS of bearing, seal and rotor measurements in a spreadsheet, from many different OEMs. I'd walk thru parking lots looking at rotors, then get dimensions on Rock Auto, trying to find that elusive unicorn that will fit just right.
While I've found lots of parts that will mate together as a pair, there's always an obstacle for making the next part assemble properly.

To that point -
To my research, there aren't really any perfect-fit bolt-on parts for what you are wanting.
Your best bet is the thinner 11.75" B-body rotor.