Upper Control Arms in Disc Conversion

Treblig said

This beats the heck out of any of the after market prices!!

http://www.forabodiesonly.com/mopar/...d.php?t=308429


When I did the conversion on my '69 Barracuda I used 73-76 A body disc brake UCAs. As far as I know they are the only UCAs you can use. They have to be off a disc brake A body 73-76!! I also used 73 and up B body spindles because they are more abundant and fairy cheap. You also need 73 and up B body LBJ. If I remember correctly I also used 73/74 Charger rotors and calipers (pretty sure).

treblig

Click to expand...

I guess what I'm digging for here is the difference between 73-76 a-body drum vs. disc UCA. Manual list two separate part #'s but they both utilize the larger upper ball joint, so are they interchangeable? Additionally, the 74 parts manual list the same Disc brake spindle for the a-body and the e-body. It is my understanding that the 63-4 b-body spindle is interchangeable with the 73-4 e-body, if so, wouldn't it be a bolt on for the 74 a-body?

I appreciate you posting the listing from the classifieds but I'm not really interested in using used parts for this specific task.

v/r
Ron