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Disc brakes on a 75 Roadrunner?? #55036
03/16/08 01:11 AM
03/16/08 01:11 AM
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Mississippi
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bcr Offline OP
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Finishing up on engine install in a 75RR drag car. Found that the rear brake hose was bad from body to rear axle housing and noticed that the car has disc brakes on rear.All appears to be factory Mopar, but no one shows this car to be avalible with discs on rear??

Backing plates are bolted to axle flanges as are calipers, right side has caliper on rear of axle while left side is on front of axle. They are also complete with the small park brake shoes in the center drum part of the rotor.

What cars did these come from?

Re: Disc brakes on a 75 Roadrunner?? [Re: bcr] #55037
03/16/08 01:21 AM
03/16/08 01:21 AM
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So Cal
autoxcuda Offline
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Quote:

Finishing up on engine install in a 75RR drag car. Found that the rear brake hose was bad from body to rear axle housing and noticed that the car has disc brakes on rear.All appears to be factory Mopar, but no one shows this car to be avalible with discs on rear??

Backing plates are bolted to axle flanges as are calipers, right side has caliper on rear of axle while left side is on front of axle. They are also complete with the small park brake shoes in the center drum part of the rotor.

What cars did these come from?




It's probably a 9.25 rear. Those are Mid 70's Imperial disc that will bolt onto the rear end type.

Re: Disc brakes on a 75 Roadrunner?? [Re: autoxcuda] #55038
03/16/08 01:52 AM
03/16/08 01:52 AM
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Posts: 27,347
Today? Who Knows?
1_WILD_RT Offline
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Quote:

Quote:

Finishing up on engine install in a 75RR drag car. Found that the rear brake hose was bad from body to rear axle housing and noticed that the car has disc brakes on rear.All appears to be factory Mopar, but no one shows this car to be avalible with discs on rear??

Backing plates are bolted to axle flanges as are calipers, right side has caliper on rear of axle while left side is on front of axle. They are also complete with the small park brake shoes in the center drum part of the rotor.

What cars did these come from?




It's probably a 9.25 rear. Those are Mid 70's Imperial disc that will bolt onto the rear end type.





Re: Disc brakes on a 75 Roadrunner?? [Re: 1_WILD_RT] #55039
03/16/08 02:23 AM
03/16/08 02:23 AM
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Mississippi
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bcr Offline OP
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Looked up a 75 Imperial on AZ site and it does appear to match calipers, pads and hardware kits. Thanks! I havnt worked with Mopars much in years and have forgot what little I did know.

BTW, is this 9.25 rear a Chrys., Dana or what? It is built like a Dana with no removable center section, it has a rear inspection plate, but is small compared to a Dana 60. A little info on it, please as to what type of gears are readily avalible for it? My best recollection is that it has 5.14 or 5.13 gears, my cousin bought this car 7 yrs ago and we are just now getting around to it.

Re: Disc brakes on a 75 Roadrunner?? [Re: bcr] #55040
03/16/08 03:16 AM
03/16/08 03:16 AM
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eganville ont
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440beep Offline
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Chrys. yes not dana 60


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Re: Disc brakes on a 75 Roadrunner?? [Re: bcr] #55041
03/16/08 03:28 AM
03/16/08 03:28 AM
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Posts: 27,549
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autoxcuda Offline
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Quote:

Looked up a 75 Imperial on AZ site and it does appear to match calipers, pads and hardware kits. Thanks! I havnt worked with Mopars much in years and have forgot what little I did know.

...




They don't make anything for it. Don't throw away those rear disk pads. I think they are different than the fronts. You might have to have them re-lined.

The rear calipers are like slider front calipers.

Re: Disc brakes on a 75 Roadrunner?? [Re: autoxcuda] #55042
03/16/08 03:44 AM
03/16/08 03:44 AM
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Posts: 28
Mississippi
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bcr Offline OP
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Quote:

Quote:

Looked up a 75 Imperial on AZ site and it does appear to match calipers, pads and hardware kits. Thanks! I havnt worked with Mopars much in years and have forgot what little I did know.

...




They don't make anything for it. Don't throw away those rear disk pads. I think they are different than the fronts. You might have to have them re-lined.

The rear calipers are like slider front calipers.






Yes they are diff on rear. Autozone website shows to have all brake parts in stock for it including, hoses, calipers, pads etc, and according to pics are the same as on car although the pads on the car are almost new.

Re: Disc brakes on a 75 Roadrunner?? [Re: bcr] #55043
03/15/09 08:08 AM
03/15/09 08:08 AM
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Posts: 583
Raleigh, NC
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rockerbob Offline
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Loved that 75 RR body style. Do you have pictures of it you can post?


2005 Dakota 4X4 3.7 2004 Rumble Bee 5.7 1978 Diplomat 318 1969 Satellite 318 "bracket racer" 1966 Barracuda (in progress ) 1964 Dodge 330 (future race project) 1962 Belvedere (HUM????)






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