Previous Thread
Next Thread
Print Thread
Disk brake conversion question #2836681
10/23/20 06:40 PM
10/23/20 06:40 PM
Joined: Jan 2003
Posts: 4,804
Metro Detroit
6PAX Offline OP
master
6PAX  Offline OP
master

Joined: Jan 2003
Posts: 4,804
Metro Detroit
Can 68-70 B/E-body disk brake assemblies (less the spindles) be installed on an A-body if using 73-76 A-body spindles?

Re: Disk brake conversion question [Re: 6PAX] #2836690
10/23/20 06:52 PM
10/23/20 06:52 PM
Joined: Jun 2003
Posts: 19,017
It's a dry heat
gtx6970 Offline
I Live Here
gtx6970  Offline
I Live Here

Joined: Jun 2003
Posts: 19,017
It's a dry heat
Originally Posted by 6PAX
Can 68-70 B/E-body disk brake assemblies (less the spindles) be installed on an A-body if using 73-76 A-body spindles?


nope

Re: Disk brake conversion question [Re: 6PAX] #2836692
10/23/20 06:54 PM
10/23/20 06:54 PM
Joined: Jan 2003
Posts: 27,792
Oregon
A
AndyF Offline
Too Many Posts
AndyF  Offline
Too Many Posts
A

Joined: Jan 2003
Posts: 27,792
Oregon
Originally Posted by 6PAX
Can 68-70 B/E-body disk brake assemblies (less the spindles) be installed on an A-body if using 73-76 A-body spindles?


No, you would have to use the B/E knuckles. Just bolt the whole assembly on there. Those brakes aren't as good as the '73+ brakes but they'll fit and work if that is all you have.

Re: Disk brake conversion question [Re: AndyF] #2836819
10/24/20 07:03 AM
10/24/20 07:03 AM
Joined: Jun 2014
Posts: 604
VA
D
dragon slayer Offline
mopar
dragon slayer  Offline
mopar
D

Joined: Jun 2014
Posts: 604
VA
There is no 68-70 B/E system. There is a 67-69 B body spindle, and there is a 70-72 B/E spindle. 67-69 B was a bendix system with different caliper and mount and rotor. 70-72 B/E used the Kelsey Hayes system single piston caliper, bracket and different size rotor.

Last edited by dragon slayer; 10/24/20 07:05 AM.
Re: Disk brake conversion question [Re: dragon slayer] #2836826
10/24/20 07:34 AM
10/24/20 07:34 AM
Joined: Jan 2003
Posts: 6,067
Benton, IL.
D
DaveRS23 Offline
master
DaveRS23  Offline
master
D

Joined: Jan 2003
Posts: 6,067
Benton, IL.
Didn't at least some '70 E bodies have a 2 piston caliper? Seems like I ran into that years ago.


KOS
Re: Disk brake conversion question [Re: DaveRS23] #2836832
10/24/20 07:52 AM
10/24/20 07:52 AM
Joined: Dec 2007
Posts: 17,343
Mass
DAYCLONA Offline
I Live Here
DAYCLONA  Offline
I Live Here

Joined: Dec 2007
Posts: 17,343
Mass
Originally Posted by DaveRS23
Didn't at least some '70 E bodies have a 2 piston caliper? Seems like I ran into that years ago.




No, all 70-74 E body used the single piston 2 pin caliper.... Dragon Slayer gave you the appropriate year applications above your last post...

FYI, the 73-4 E body rotors use the larger inner rear bearing and 1 pc rotors, as do all 73 up disc applications, the 70-72 E/B spindles/rotors use the smaller inner rear bearing and 2 pc rotor, hence 2 E body spindles, the 73 and up B body spindle is the "tall" spindle, similar to the F/M/J body slider caliper spindle....

Mike

Re: Disk brake conversion question [Re: AndyF] #2837566
10/26/20 01:06 PM
10/26/20 01:06 PM
Joined: Jan 2003
Posts: 4,804
Metro Detroit
6PAX Offline OP
master
6PAX  Offline OP
master

Joined: Jan 2003
Posts: 4,804
Metro Detroit
Originally Posted by AndyF
Originally Posted by 6PAX
Can 68-70 B/E-body disk brake assemblies (less the spindles) be installed on an A-body if using 73-76 A-body spindles?


No, you would have to use the B/E knuckles. Just bolt the whole assembly on there. Those brakes aren't as good as the '73+ brakes but they'll fit and work if that is all you have.


Ok, so if I use the B-body assemblies including the B-body spindles, will there be any issues regarding the upper or lower control arms? These would be going on a 70 Dart which currently has sbp disks.

Re: Disk brake conversion question [Re: 6PAX] #2837572
10/26/20 01:25 PM
10/26/20 01:25 PM
Joined: May 2005
Posts: 3,775
Florida
BDW Offline
master
BDW  Offline
master

Joined: May 2005
Posts: 3,775
Florida

Re: Disk brake conversion question [Re: 6PAX] #2837574
10/26/20 01:30 PM
10/26/20 01:30 PM
Joined: Jan 2003
Posts: 27,792
Oregon
A
AndyF Offline
Too Many Posts
AndyF  Offline
Too Many Posts
A

Joined: Jan 2003
Posts: 27,792
Oregon
Originally Posted by 6PAX
Originally Posted by AndyF
Originally Posted by 6PAX
Can 68-70 B/E-body disk brake assemblies (less the spindles) be installed on an A-body if using 73-76 A-body spindles?


No, you would have to use the B/E knuckles. Just bolt the whole assembly on there. Those brakes aren't as good as the '73+ brakes but they'll fit and work if that is all you have.


Ok, so if I use the B-body assemblies including the B-body spindles, will there be any issues regarding the upper or lower control arms? These would be going on a 70 Dart which currently has sbp disks.


Yes there will be an issue with the upper control arm, the ball joint is too small on a '70.

Re: Disk brake conversion question [Re: 6PAX] #2837661
10/26/20 04:25 PM
10/26/20 04:25 PM
Joined: Aug 2003
Posts: 35,912
Bend,OR USA
C
Cab_Burge Offline
I Win
Cab_Burge  Offline
I Win
C

Joined: Aug 2003
Posts: 35,912
Bend,OR USA
Get yourself the 1973 V8 and up A body spindles, brakes and A arm and lower control arm, rotor with the 4.5 inch bolt pattern hub, and bolt it in and go stop better up scope
I did that to my 1971 Duster street and strip, it stopped fine in the 1/4 mile running 134.+ MPH weighing 3450 Lbs. with me in that car up
I used all the parts from a 1974 318 Duster with those stock disc brakes up wrench
I think the 1973 6 cylinder cars still had the small 4.0 inch bolt pattern them, Mopar drop them, the 4.0 bolt pattern, in 1974 is what i was told on here about them in 2002 or so when I built that car shruggy
I did mount the brake caliper so it was mounted behind the spindle by reversing the spindles from the right side to the left and vise a versus, it aligned fine and stop great with that change up scope That help move some of the weight back towards the rear of the car helping traction without being seen devil up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Disk brake conversion question [Re: AndyF] #2837942
10/27/20 10:35 AM
10/27/20 10:35 AM
Joined: Sep 2003
Posts: 13,498
north of coder
moparx Offline
"Butt Crack Bob"
moparx  Offline
"Butt Crack Bob"

Joined: Sep 2003
Posts: 13,498
north of coder
Originally Posted by AndyF
Originally Posted by 6PAX
[quote=AndyF][quote=6PAX]
Ok, so if I use the B-body assemblies including the B-body spindles, will there be any issues regarding the upper or lower control arms? These would be going on a 70 Dart which currently has sbp disks.


Yes there will be an issue with the upper control arm, the ball joint is too small on a '70.




dr. diff has ball joint adapters that will allow the small ball joint to fit the B-body spindle.
i used these on my buddy's 72 duster and they worked great !
beer

Re: Disk brake conversion question [Re: moparx] #2838059
10/27/20 04:18 PM
10/27/20 04:18 PM
Joined: Jan 2003
Posts: 27,792
Oregon
A
AndyF Offline
Too Many Posts
AndyF  Offline
Too Many Posts
A

Joined: Jan 2003
Posts: 27,792
Oregon
That is one solution.

Re: Disk brake conversion question [Re: AndyF] #2838123
10/27/20 07:59 PM
10/27/20 07:59 PM
Joined: Jan 2003
Posts: 4,804
Metro Detroit
6PAX Offline OP
master
6PAX  Offline OP
master

Joined: Jan 2003
Posts: 4,804
Metro Detroit
If I use 73-up A-body upper control arms, will that do the trick?

Re: Disk brake conversion question [Re: 6PAX] #2838157
10/27/20 09:36 PM
10/27/20 09:36 PM
Joined: Jan 2003
Posts: 27,792
Oregon
A
AndyF Offline
Too Many Posts
AndyF  Offline
Too Many Posts
A

Joined: Jan 2003
Posts: 27,792
Oregon
Yes, that is another option.

Re: Disk brake conversion question [Re: AndyF] #2838320
10/28/20 11:56 AM
10/28/20 11:56 AM
Joined: Sep 2003
Posts: 13,498
north of coder
moparx Offline
"Butt Crack Bob"
moparx  Offline
"Butt Crack Bob"

Joined: Sep 2003
Posts: 13,498
north of coder
i forgot to say, the reason i/my buddy went with the upper ball joint adapters, was the upper arms came with new bushings and ball joints already installed.
if your upper arms need any parts, just replace the arms with the newer style and be done.
beer







Powered by UBB.threads™ PHP Forum Software 7.7.1