[onZedge]

a) Clamp the shaft in a vice with the CV joint you want to remove hanging down.
b) Using a ball joint separator (pickle fork - they come in two sizes), rest the tool on the inner race of the CV joint.
c) Hammer away on the tool handle close to the CV joint - you will not hurt your balls this way!

I have four used boots in great condition - no tears or cracks. PM me with an offer. You might as well do both boots, or even all four "while your in there".