You don't have to do both sides at the same time. You can do it yourself if you are mechanically inclined a little. You have to have the vehicle jacked up and take off the wheel, remove the little hub that covers the nut for the wheel. Remove the carter pin and loosen the nut. You can then take the hub off the spindle, there is a seal on the inside of the hub remove it to gain access to the bearing, remove the bearing and check it, the race inside the hub should also be replaced. Pack the whee bearing with grease and reinstall. Sorry for being so late getting back to you but could not download the information I wanted to send to you.
Saturday, March 17th, 2007 AT 8:51 AM