Well, looks like something else is wrong because a 70 Runner and a 73 Challenger use the same tie rod end, only looked at the outers but that's what connects to the spindle.

Here's the link to the MA swap guide http://www.moparaction.com/Tech/archive/disc-main.html

They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.