HDK Tubular Coil Over for Stock Steering

Not necessarily. ....

will start looking for the smaller screw in upper ball joint.....in the 70's, we just took the 70 spindles to a machine shop with the 7 degree taper bit and bored the spindle out to use the bigger ball joint......but, I'm confident for anyone that wants to retain their spindles as-is.....the smaller ball joint is availble.....just never needed to find them until now.

Uppers need to be changed to a version that will accept the diameter of the coil spring vs a factory shock.