ok guys lets "pretend" this is going in the rear of a IDI powered dedicated tow rig/ truck puller. (actually my travelette shhhh ;p) it's only use will be towing a trailer with my scout 6000lb, on the 3000lb trailer. and the truck pulls here and there. the front 60 is getting a lock right as it will either be in 4x4 for getting the trailer unstuck or at the pulls. now i have heard that a detroit locker is not good for towing. i heard mixed reviews on a true track posi, some say it's the best bet, some say its also not too good for towing. then it was suggested about a selectable locker, but they are A LOT of coin and i'm not sure how long the 60 will be in the rear.... what's your experiences and suggestions? thanks!