Quote:
Originally Posted by JustToxic
Look for control arms and spindles for a '75 C20, the upper and lower control arms are the same on the 1/2 to the 3/4's in that body style. The control arms are the same size as the '67-72, but different ball joints. You can get tubular control arms for say a '75 C10/C20 but the ball joint will only fit the same year spindle. (make sense) I have a '67 C20 that I was going to switch all over to '75 parts but I just decided to make it a 4x4 instead. PM if you need more info.
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This is not correct.
3/4-ton lower a-arms have a bigger hole in the arm compared to the 1/2-ton lower a-arms.
Uppers are the same, and will accept either the 1/2-ton or 3/4-ton baljoint.