Previous Thread
Next Thread
Print Thread
Disc brake swap? #159559
12/01/08 01:20 PM
12/01/08 01:20 PM
Joined: Jul 2003
Posts: 2,125
Hunt Valley, Maryland
1fastrunner Offline OP
top fuel
1fastrunner  Offline OP
top fuel

Joined: Jul 2003
Posts: 2,125
Hunt Valley, Maryland
I just got a set of disc brake spindle assembly off a late model A-body. It already has the large caliper adapters with 11" rotors. How can I tell which side is which and do they need to be reversed for my application on my '71 Road Runner. I want to disassemble them and clean them up, but I want to be sure I can tell which one will go on which side. I remember hearing something about reversing them in some applications because of the hose routing.
Jim

Re: Disc brake swap? [Re: 1fastrunner] #159560
12/01/08 02:15 PM
12/01/08 02:15 PM
Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426 Offline
master
jbc426  Offline
master

Joined: Mar 2007
Posts: 3,277
West Coast, USA
I mounted mine in the "stock" location in front-of the spindle on my '68 A-body, and in back of the spindle on my '70 e-body (see pic) The brake lines and calipers you need to use differ depending if you put them in the front or rear of the spindles.

This link has some good info. You can also look up "Doctor Diff" on this site if you have further questions. He is a great resource and a good man.

http://www.moparaction.com/tech/archive/disc-main.html


1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)
Re: Disc brake swap? [Re: jbc426] #159561
12/02/08 12:09 PM
12/02/08 12:09 PM
Joined: Mar 2003
Posts: 18,678
Fresno, CA
Jim_Lusk Offline
I Live Here
Jim_Lusk  Offline
I Live Here

Joined: Mar 2003
Posts: 18,678
Fresno, CA
I think with the sway bar on the 71 it doesn't matter whether you mount the front or rear caliper. Just make sure the bleeder screw is UP.

Re: Disc brake swap? [Re: Jim_Lusk] #159562
12/02/08 03:55 PM
12/02/08 03:55 PM
Joined: Jan 2003
Posts: 31,018
Oregon
A
AndyF Offline
I Win
AndyF  Offline
I Win
A

Joined: Jan 2003
Posts: 31,018
Oregon
Right, it doesn't matter in terms of interference but the hose routing is better if the calipers are to the front of the spindle. When the calipers are to the rear of the spindle you have a short hose that has to routed just right or else it will kink. In front of the spindle you can use an off the shelf hose without any problems.

Re: Disc brake swap? [Re: AndyF] #159563
12/02/08 04:09 PM
12/02/08 04:09 PM
Joined: Jul 2003
Posts: 2,125
Hunt Valley, Maryland
1fastrunner Offline OP
top fuel
1fastrunner  Offline OP
top fuel

Joined: Jul 2003
Posts: 2,125
Hunt Valley, Maryland
So, if the calipers are in the front, I can use whichever spindle I need on whatever side to have the calipers on the front?
Jim

Re: Disc brake swap? [Re: 1fastrunner] #159564
12/02/08 04:53 PM
12/02/08 04:53 PM
Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
R
RapidRobert Offline
Circle Track
RapidRobert  Offline
Circle Track
R

Joined: Nov 2003
Posts: 36,040
Lincoln Nebraska
NO. If on this car the brake hard line/neoprene hose bracket is BEHIND the UCA AND you can mount the calipers in the front & they WONT interfere with the sway bar then that is what you want to do. Just use the particular spindle on the drivers side that will position the caliper mounting holes on the front side which means the other spindle when mounted on the passenger side will automatically position the caliper mounting holes to the front also.


live every 24 hour block of time like it's your last day on earth
Re: Disc brake swap? [Re: RapidRobert] #159565
12/02/08 05:04 PM
12/02/08 05:04 PM
Joined: May 2003
Posts: 15,487
Florida
S
scratchnfotraction Offline
I Live Here
scratchnfotraction  Offline
I Live Here
S

Joined: May 2003
Posts: 15,487
Florida
the spindle from an A-body with out the bottom ball joint bolted to it

will go on ether side

the lower bj is side specific as well as the caliper bracket

mounted front or back makes no diff in stopping

you just want to go with the way the brake line is set up for front or rear mount of the caliper


Re: Disc brake swap? [Re: AndyF] #159566
12/02/08 07:03 PM
12/02/08 07:03 PM
Joined: Mar 2007
Posts: 3,277
West Coast, USA
jbc426 Offline
master
jbc426  Offline
master

Joined: Mar 2007
Posts: 3,277
West Coast, USA
Quote:

Right, it doesn't matter in terms of interference but the hose routing is better if the calipers are to the front of the spindle. When the calipers are to the rear of the spindle you have a short hose that has to routed just right or else it will kink. In front of the spindle you can use an off the shelf hose without any problems.




For the record, I used the 70-74 E-body calipers and hoses for the front mounted position on my '68 A-body conversion and 78 C-body calipers with GM/Firebird hoses for the rear mount conversion on my '70 E-body. The later uses a banjo style conection, and fit's beautifully. I'd have to look up which year the hoses are, or just ask Dr. Diff. That's where I got my parts.


1970 Plymouth 'Cuda #'s 440-6(block in storage)currently 493" 6 pack, Shaker, 5 speed Passon, 4.10's
1968 Plymouth Barracuda Convertible 408 Magnum EFI with 4 speed automatic overdrive, 3800 stall lock-up converter and 4.30's (closest thing to an automatic 5 speed going)






Powered by UBB.threads™ PHP Forum Software 7.7.1