NO!

I've had both a Detroit Trutrac Limited Slip (past) and an Aussie Locker (currently) in the front differential and you don't want a "spool" in the front.  If you can't afford to purchase an Aussie Locker (www.aussielocker.com) then you can afford upgraded birfields and they are not that exciting to change.

A single rear locker is more than adequate for any normal wheeling. 

hey blackdiamond would you say it would be safe to put the detroit tru-trac lsd in the front with stock 27 spliners, or is it still a nessesity to put 30 spline chromoly longs in...this will be with 35x1250s, mainly dd but a couple times a month hitting the trails