Wanted 74 dart upper control arms or complete brake kit

FYI.
There is no difference in upper control arms, between disc brakes, or drum brakes, on big ball joint, 73-76 A body cars.
They are all the same.
After all these years, don't know why that misconception still exists.
And then, 62-72 UCA's are also the same, wether disc, or drum brakes.

hate to say this, but you are partially wrong sir. My 1974 dart came with 9 inch front drum brakes, I tried to put the spindles from a 74 dart sport with disc onto the the drum brake uppers, the ball joint itself on the top, wouldnt go into the spindle. So I had to go back to the junkyard get the uppers from the donor car and that worked.

Now, I did learn that supposedly the 10 inch drum brakes had the same balljoint as the disc brake cars from 73-76. But I do not know that for a fact.


Or does this mean the a arms do not need to be changed for disc swap?
Yep, that's not hard to figure out from previous replies.