Bob, I have lockers, tera's and a second t case. The lockers are by far the best because they keep traction in loose situations. The low gears are nice for not stalling out and going slower, but even with the low gears, if I don't lock the arb's I get stuck spinning tires, Then I take it out of 4 lo in the case with the tera's and just use stock 4 lo and lockers to get unstuck. So since I can choose between tera's and stock, I choose lockers as the best for what I have encountered.

94 Rodeo
sas'd front dana 44(coil sprung), dual transfer cases (isuzu), tera lows, custom bumpers, winch, arb lockers[url= [url=http://community.webshots.com/user/94rodeo] [url=http://community.webshots.com/user/94rodeo[/url]http://community.webshots.com/user/94rodeo[/url]