Only the boot for the axle C/V joint can be changed; if problems with internal axle shaft components are uncovered during a road test, the whole axle assembly should be changed. Begin by removing the axle shaft, then after that, pull out the large boot clamp holding the Sealing Boot onto the C/V joint housing and throw it away. Then, get rid of the small clamp holding the outer C/V joint sealing boot onto the axle shaft. After removing the boot from the inner joint housing, lower the sealing boot down the axle shaft. After a clean inspection, check the axle C/V joint assembly and axle shaft for excessive wear. If any areas show signs of excessive wear, the component parts can't be serviced and the whole axle shaft assembly will need to be replaced. First, use the new large clamp C/V boot to circle the axle shaft, then slip on the sealing boot for the C/V joint to cover the axle shaft. Put half of the grease from the kit into the C/V joint assembly housing and place the rest into the sealing boot. Set the small clamp across the sealing boot and place the boot into the groove that holds it in the axle C/V joint housing, before you install the large retaining clamp. Crimper C-4975-A is used to hold the small sealing boot clamp on the axle shaft by having the crimping tool tighten the nut just enough for the jaws to meet. Check that the seal is not bunched, sagging or appeared differently; if it is off shape, try to equal out the pressure then press it with your hands into the right shape. Put the Crimper C-4975-A tool over the bridge of the large sealing boot clamp and tighten the nut to make the jaws join together at the end.