My Jimmy has not had the best maintenance record in the past, but it also hasn't been run too hard. But for some components, I don't want to wait for them to break before replacing them. For example, the other day I replaced the u-joints on the front and rear axles. The u-joints on it were the original factory joints. May not sound like a big deal to you, but my Jimmy has 239,000 miles on it! Not too damn bad! Anyway, in a couple of weeks, I am replacing the front and rear gears. I believe that we will have to pull the fron axle shafts out slightly to do this. If this is true, while I am pulling out the front axle shafts, should I go ahead and replace the u-joints up there as preventative maintenance? U-joints are fairly cheap and I believe in doing things right when I'm in there. Y'all's thoughts? Brian Click to see <a target="_blank" href=http://tx85gmcguy.alloffroad.com> My 85 Jimmy </a> PM me for a great deal on blinker fluid! Best price on the net!