Disc brakes and small block kick down

[Sedanman]

1 set of a nice used Disc Brake set removed from a 73 Roadrunner Will bolt up and work on 66-74 B & E bodies. I would rebuild the calipers and add new hoses and 2 of the bolt holding the caliper to the spindle are missing. Spindles are great. $200 + ship

stock small block kickdown assy $75 + ship

 

[challenger6pak]

The 73 up B body uses a taller spindle than the Ebody. They will bolt into place. They can force the balljoints out of their designed range. They are 73 up parts for the B body. You could list them at www.forbbodiesonly.com

 

[Sedanman]

They can be used on a body as well and I haven't heard of any ball joint issues with the swap before. Where would I find this info?

 

[challenger6pak]

Just do an internet search. Here is the first article I came across. See paragraph 4.

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

 

[aussiemark]

They can be used on a body as well and I haven't heard of any ball joint issues with the swap before. Where would I find this info?

I agree with challenger6pak I bought spindles like these for a 68 Charger and ended up throwing them in the bin because the return postage was too expensive was told they were off a 69 but they were longer, did the research and now I know the full story.

 

[moparleo]

What carb is the kick down assembly from ? The 2bbl and 4bbl are different. The 4bbl linkage attach points are farther forward on the engine/manifold which causes the kick down linkage to be too short. Of course you could cut and weld in a section.

 

[Sedanman]

I went through everything in that link about the swap and it doesn't say anything about staying away from the 73 B body disc's. This member used the same set up without any issues and does a step by step tech install.
http://www.forebodiesonly.com/forum...Challenger-Disc-Brake-Conversion-Walk-Through

 

[Sedanman]

What carb is the kick down assembly from ? The 2bbl and 4bbl are different. The 4bbl linkage attach points are farther forward on the engine/manifold which causes the kick down linkage to be too short. Of course you could cut and weld in a section.

It's from a 2bbl and it wouldn't be hard to modify the carb rod if need be,all of the hard to find stuff is there.

 

[challenger6pak]

You went through everything in the link and didn't see anything about staying away from the 73 B disc's?

Here is what you somehow missed.

Do not succumb to the temptation to use "lookalike" knuckles from later Mopars, such as 73-up B/R-bodies, F/J/M bodies, etc. These parts, while visually very similar, are taller, altering suspension geometry (camber change, bump steer, etc.), and possibly forcing the ball joints beyond their designed range, a/k/a “over angling”.

 

[challenger6pak]

Site double posted.

 

[71solo2challenger]

Do not succumb to the temptation to use "lookalike" knuckles from later Mopars, such as 73-up B/R-bodies, F/J/M bodies, etc. These parts, while visually very similar, are taller, altering suspension geometry (camber change, bump steer, etc.), and possibly forcing the ball joints beyond their designed range, a/k/a “over angling”.

Key word is Possibly. E-berg never checked. Bill Reilly of Reilly Motorsports (the Alter-K-Tion guy, somebody with no dog in this fight) actually installed the setup and measured it: http://www.hotrod.com/how-to/chassis-suspension/mopp-0503-swapping-a-and-b-disc-brake-spindles/

Is it the absolute best choice? Not really. Is it suitable and will it work? Yes.

 

[challenger6pak]

Now it is up to the buyer to decide.