Whatever you do, don't, and I repeat don't buy the split-boot repair kits with screws that hold the boot together. Buy a complete, one piece boot, and some of the OEM type snap-lock (crimp style) rings that secure the boot to the axle.
Those split-boot (quick boot) POS's don't last for crap on 95 out of 100 users who get duped in to buying them.