I've not read any replies, here's my prepackaged CV boot fix, it's for the front boot but the rear griz boot should be real close to the same to get to, the the bolts through the rear knuckles slide out.
To fix, remove the wheel, pull the rubber cup off(yami). Remove the cotterpin, aply ludicrous torque counterclockwise to the big jesus nut, I advise having a partner hold the brake tight so as not to put strain on the diff gears. Remove the big nut, remove the brake cailper, pull the hub/rotor. Remove the cotter pins on the ball joint bolts, the bottom bolts slide out(yami, honda's another taper), the top joint is taper fit, a small hammer to the knuckle seems to be all that's needed on the grizz to break that taper. Coerce the knuckle free of the halfshaft( turn the handlebars opposite of the removed wheel to give extra room.) Use a pry and tapping to get the halfshaft from the diff. Use a thin screwdriver to peel open the clamps on the boots(they are reusable a few times.) Slide the inside boot down the shaft, root the outer snap ring out of the grease, remove the inside hub, use snap ring pliers and remove the clip off the end of the halfshaft, slide the inboard bootup and grab the bearing in it-Keeps things cleaner- hahahha.
Slide the outboard boot free, soak it (the CV joint)in your favorite solvent, get the grease, mud, dirt out. Finnish with engine degreaser, flush it clean, pack with boat bearing grease, or any other good grease(read: something that's more than 79cents a tube) I use Mystic JT6, by the tub and have for 15 years or so, it's not let me down-ever even where I cheat on applications. Slide the outboard boot on, now for getting the right amount of air in the joint take a little practice, just put it on and try articulating it, if it pops loose or kinks try a little bit different position/air, replace the outboard clamps, don't forget the inboard small clamp, slide the inboard boot and bearing on, replace the snap ring, insert it in the inboard hub, install that snap ring, tighten all the boot clamps, check for full articulation. Clean the diff splines, graease the outer diff seal, insert the halfshaft, clean and grease the outboard splines, apply grease to the seals on the knuckle, install the knuckle and refasten the ball joints, install the outer hub/rotor, install the brake, have a partner hold the brake tight and install the jesus nut plenty tight, install the cotter pins, install the rubber cup, install the wheel, roll on...