What's involved in converting from automatic locking hubs to manual locking hubs. I just bought an '89 Jimmy and I'm gonna replace the front wheel bearings, ball-joints, tie-rod ends etc... Figured I might as well scrap the auto-locs as well. I'll be going with Warn's Premium Locking Hubs. Thanks!! <font color=black> -Tommy <font color=red>"To secure peace is to prepare for war..."