I went with the ARB rear locker because I drive in snow and ice in the mountains. Auto lockers can be quirky on snow and ice. Just something to consider. ARB's are a lot more expensive, however, and it sounds like you are looking for a cheaper option.

Pete

'01 Rodeo Sport, 5 Speed Softie, Indy 4X rocker bars, OME 912's, Rancho 9000X's, Superwinch hubs, custom tube bumper with Warn 9000i , Flowmaster 50, TeraLow t-case gears, ARB front & rear lockers, TrXus MT's, Sway bar disconnects