I took off my axles from swapping my engine and noticed both of my axle boots on the outside are torn in two. I went to a automotive shop and got new boots, clamps, and grease for each boot in a box and it only cost me $30. The guy there said you don't need any special tools just a side cutter and a pair of pliers. Since the one strap you just pull until its tight then cut off the excess and the other you just squeeze shut with a pair of pliers.