Norman, are you running Warn hubs? You may already know that there is a 'fuse' option for them. It is designed to 'blow' before other, more expensive parts like CV joints blow. The Land Cruiser guys were discussing it, said it blew too easily but if it is the same part as for the Warn Xterra hubs, think how much more a LC weighs
http://www.xterraparts.com/html/offroad.html
(see the Warn Hub Fuse link on their page)