Well, I am a freelance writer for Petersen's 4Wheel and Offroad. As such, I was introduced to Mike Denton the CEO of Superior through a mutual friend and was let in on the development of this kit. Unfortunatley, I can't spill too much info at this time because these are still in the test phase. but here is what I can tell you:
1. The kit uses 31 spline, 4140 chromoly shafts which are drilled and threaded for dual bolt patterns, both 5 on 4.5" and 5 on 5"
2. these are not standard c-clip eliminators, the kit uses a special, newly designed flange which is designed to handle the side loads our vehicles see in an offroad environment.
3. this is a very easy install which could be done with no more than a few wrenches, a file, and a hacksaw in your driveway
4. the kit will work with any locker or differential available for the 8.8
5. the kit will widen the axle by a little more than an inch. going from the stock 59.5" WMS to 61 and 3/8" WMS
6. the kit will work with disc or drum brake equipped 8.8s