I just did 14 passes at Pacific Raceway on the 21st of August and my new set-up rocks, I sucked at first but having never driven a 6 speed and 14 tries later, I got better.
My set-up launches true and straight with stock P-Zero 245x19's. A little spin at first but much better then before.
Yukon differential posi-traction no fish-tail like with the Track-Lock. Some one at the track with a Boss said they broke their's (T2) my research showed T2 were good at the Track but bad for Drag Races. My $350 Yukon + $400 install is better then a $900 T2 + install that's going to break again. 14 launches straight and it felt good and gave me the confidence to launch harder.
Swarr-Bar? That thing running under the differential. Stops side-to-side hop.
The differential tubes are also tac welded all around at the bace of the center diff housing.
For the OCD: All Eibach Springs/Struts/Shocks and Sway-bars, All matching BMR adj.
LCA with LCB, UCA, PHB and Safety Loop/Brace, Alloy diff shafts, FRPP 3.73 with FRPP cover and Royal Purple, One piece Shaft Master aluminum drive shaft with steel braided clutch-line, Barton SHS.
Once I get the new clutch and aluminum flywheel, I'll have a bombproof driveline that gets me from A to B as fast as I can learn to drive this 6 speed.