Dumb ball joint question

[mrhollywood]

Is the upper ball joints the same size on the drum and/or disc on a '73 A body? or is the drum the small ball joint and the disc the large?

 

[DDodger]

all drum small. all 73 later disk larger

 

[hemi71x]

There are some early production 73 A bodys with 9 inch drum brakes that would have the Small ball joint.
But all 73-76 A bodys with either 10 inch drum brakes, or disc brakes, all use the large ball joint.

 

[BillGrissom]

hemi71X is the expert on this subject. To be totally sure (your car may have been mod'ed), use a vernier caliper to measure the flat-flat width of the upper ball joint and compare to the two sizes of sockets sold for our cars.

 

[mrhollywood]

It's not for me, I've already converted my '70 Dart which I know had small ball joints. This is for kid I know who has a '73 Duster with drums, he wants to convert to discs . Just trying to figure out if he needs to swap his upper control arm or not.

 

[Rockerdude]

I just put 73sbp drum front end on a car and it had large ball joints. They were the large finned drums.

 

[RustyRatRod]

I just put 73sbp drum front end on a car and it had large ball joints. They were the large finned drums.

I think post #3 confirmed that already.

 

[bruceo2011]

Is the upper ball joints the same size on the drum and/or disc on a '73 A body? or is the drum the small ball joint and the disc the large?

No dumb questions here . If you don't ask, you can end up with wrong parts, lost time and aggravation. Unnecessary do overs really suck.