I used to buy the Schucks forever warranty ones. Used the warranty 3 times before I got rid of the IFS. Bought a couple junkyard ones for spares. Junkyard CV's were going for $25 to $35, the rebuilt ones were around $75 each IIRC. Probably over $100 each nowdays. Put new boots on your present ones & use them as spares if you are getting new ones. The hardest part of replacing them is the clamps.