64 dart with damaged suspension?

I should have the replacement parts you need. It's unlikely the spindle is bent but it is possible. Usually you bend the lower control arm and the strut rod. Sometimes the tie rod. It's rare you bend the upper control rod or the spindle unless it took a real good lick. Another possibility is a bent K-member. You'll need to get it up in the air at a good alignment shop to see what all needs to be replaced.
Thanks, Mark

Been there did that; 2 times in the past, bent the lower control arm,
and the strut rod, and tie rod.

Once I was on the way home, on my normal route, with new tires,
and was going fast thru the intersections/turns, and hit loose stone;
after the city had "oiled and stoned" the street. :(

The next time about 5 years later, was at work and slid on ice, into the curb. :(