Get a Electric locker if your into doing any offroading, get limited slip if you plan on doing more onroad then offroad.

Limited slip uses clutches and they wear out after a while. The more the wheels spin (ie offroading) the faster they wear out then you gotta replace them.. big pain.

Electric locker is nice cause you can turn it off and on whenever you want. All you gotta do is the grey wire mode. Besides its amazing how far you can get with a rear locker and 2wd

Welding and Fabrication Engineer
2003 taco V6 ext cab sr5
1988 Toyota Pickup V6(totaled)