I might be getting pretty much the opposite of what you have - currently e-locker out back but looking to add a helical/torsen up front. Do you think the daily driving characteristics will be severely hampered at all up front in daily driving or high speed/low traction surface scenarios?

The AWD (V8) I have already inherently creates understeer as it is, but I'm a tad concerned with getting even more understeer if I add an LSD up front. Not sure the truetrac types' ratio (4.5:1?) but the raptor seems to use 2.5:1 under power and 2.1:1 while coasting. to reduce the understeer characteristics.

I'm inclined to think a lifted front wheel scenario would be greatly helped by a LSD with ATRAC acting as a preload to get the front to lock.

Thoughts?

I run ARB Air Lockers in my 88 FJ62 Landcruisers and I rock crawl pretty hard with it. I've never had my ARB fail nor any of my friends. The ARB is the best option for a front differential hands down. If you need a locker you already should have a compressor on board. If you buy the mini ARB compressor they last forever as long as you don't mount them in the engine bay.