Well it definitely helped a bunch. It can handle 2nd gear full power now. I am confident these will be good to go on the Road Course but will need the links at the AutoX or Drags. First gear goes into wrap,wheelhop, vibration slightly and is still not adequate. A torque arm would probably be the fix and still keep leafs, but a 3 link with watts and coilovers would'nt be that much more work. Now I say do I want to do that much work on my 8 3/4 or just go Dana or 9" too. The Gen III is a tad easier on the springs in the lower revs but its a whole different animal between gears, the powerband basically gained another 900 rpm over the BB.