Is this a good deal and will it fit my 63 dart ?

[trapster]

http://sarasota.craigslist.org/pts/2065519261.html

Removed from 1971 Duster small bolt pattern.

Dual piston, usable condition.

includes upper and lower arms.

 

[BlackBrick]

From a 71 should be the KH setup, which I think uses the same UCA and Ball Joint from your car. Some of the parts can be spendy to locate these days and I know the Lower ball joints are pretty spendy too, one of the main reason I went to BBP Disc/Rear setup on my 72.