Any help would be greatly appreciated.
I have a 74 Bronco. it had drum front brakes. I converted it over to disc using a 76/77 front disc steering knuckle.
I had a shop install the ball joints and reassemble the front end. When I picked the truck up the mechanic said the ball joint diameter did not seem to be correct diameter. when placed into the axle, the nut would not draw down onto the knuckle- so they used a big washer to take up the slack. This was the beginning of my steering problems. The truck ever since had steering problems. I took it to another shop for realignment and they sat the front end is binding- to tight at the knuckle. So before I go pulling this back apart can anyone confirm their are different diameters in the ball joints. I think the original shop ordered joints for a 74 and they should have been for a 76/77 due to the steering knuckle or maybe the other way around- joints to fit the 76/77
Or am I just totally wrong?

 

According to Rock Auto it uses the same ball joint for both years.

EDIT: just noticed that you asked last week. Not much activity over here, is there.

 

Yes, this is pretty much of a dead zone.
I don't have answ on this Q. I'm 70% off rd & as long as it don't hit a tree, logger, or draft animal all's OK.
I DO know the '76/7 has different ster. linkage geomitry than all other yrs (along w/the discs) but that's not ur issue.

Head over to classic broncos . com for more action/definitive answer…
But watch out, there's some egos over there. They can pin back yer ears.

For I6 or falcon six answers B sure to C fordsix dot com. Not many on that site (CB) have the definitive answer 2 those motors (all 6 models: the big6 or sm6, 2 of which were in da bronk - 170 & 200).

Let us know how U do!