[Captainfab]

There isn't anything better about the '71-'72 spindles, or any of the front suspension, versus the '73-'87. In fact I prefer the '73-'87 control arm rubber bushings over the '72 and earlier steel control arm bushings. Also the '71-'72 upper ball joints are more expensive than the '73-'87 uppers.

Around here the '67-'72 trucks have been popular for over 30 years, so used parts used to be hard to come by and expensive when you did find them. That is one reason I always used the '73-'87 parts.