I'd look at a tru-trac LSD. It's a gear driven unit, so it won't wear out before you get a chance to use it more than once or twice. You didn't say what kind of budget you're looking at, but what about an ARB? Tellico has that strange liquid earth stuff all over the place from what I hear.
One more thought, if you have hubs then consider a full locker in the front.

_____________________
John
95.5 YJ with "stuff"
http://SonsofThunder4x4.com

 

I have a Detroit Locker. Do it. No worries.

 

do the detroit lockers have all the weird clicking and jerking? or are they smooth operators?

knife

 

I'm running a Detroit Tru-Trac in the rear of my Blazer. At the time when I installed it the truck was my daily driver so I decided not to go with a full locker. The Tru-Trac is very smooth on the road and hardly, if at all, noticable but it does seem to work very well off-road. In extreme situations (a.k.a. one tire off the ground) a little brake pressure is required to get it to lock up. Though I'm pleased with it, if or when I do it over it will have a Detroit Locker in the rear since the truck is now used only for trailriding so everyday road manners don't matter.

6.2Blazer

 

I only notice the tell-tale jerk every once in a while. Usually leaving a light going slightly uphill and slightly to the left, light throttle half way through second gear.

 

I run a Powr-Loc in the front and an Auburn pro in the back. The pro is similar to the regular Auburn except that it has stronger springs so it stays locked longer. The Powr-Loc is supposed to be one of the stronger Limited slips available for a Dana 44, and it locks up real tight. I have gotten both of them to slip on hillclimbs when the truck is really twisted up, but they lock back up if I ride the brakes a little. I am now running only half a bottle of additive in eash one, which makes them noisier but they stay locked longer (although they wear faster, but at less than 3000 miles a year on the truck, no biggie to me). The reason that went with the L/S's instead of full lockers is because they are less prone to break axleshafts because they'll slip before breaking the shaft on a wheel that's stuck. I run a Dana 44 front with ORD shafts and a 12 bolt rear with Mosers and 38" Swampers. I have broken an axleshaft and a steering joint in the front in the past year, but I'm sure that I would break them more often with full lockers.

Evan/wwwthreads_images/icons/crazy.gif
Contagious Off-Road