70-72 valiant lower ball joints

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So looking at the one we removed from the car (the one with the tie rod still attached) its definitely not angled upright or off to the side slightly. So if I can find one that specifies that it's for a disc brake car, should I expect that it will be angled up and over? The ones we ordered call for it to be on a disc brake car, but clearly aren't as they have the 1/2" bolt and to me are shorter arms, overly angled. Anyone know any 70-72 part brand and numbers that they have used with success? I am reluctant to buy from rock auto as in the past parts are often not correct and returning the parts is not always easy with them. Gotten lots of wrong head bolts, pistons, etc from them.