Good day everyone. We bought a gently (we think) used geo tracker (97) about 5 weeks ago with 67000 miles on the clock. Whsn we start rolling with it there is a slight "clunck" noise in the front. I have never owned a 4 wd before, is this normal? It does not (at least yet) seem to effect it in any way. It sounds like it is comming from the front left side. (It has automatic locking hubs). Any ideas? Is this normal? Info appreciated.