Over the last several weeks I've been swapping back and fourth between the TJ and LJ, when driving to work. My commute is approximately 23 miles each way, so I've had ample opportunity to experience just how different the two rides are. The short version is the LJ, with 2" Pro Comp springs, Black Max shocks, 32" A/T tires (C rated) and stock everything else needs some attention desperately.
The TJ, with significant modifications, handles so much better than the LJ. The difference is actually quite shocking! The TJ handles like a go-kart and I can easily lay into a turn, at speed, comfortably and confidently. Unfortunately, the LJ reminds me of riding in my parents 1976 Chevrolet Caprice Estate station wagon. Going into a turn I can feel the vehicle shift and am left with an uncomfortable feeling.
I'm currently making incremental updates, to see what makes the most significant improvements. Thus far, the Rubicon Express shocks (aka Bilsteins) have been swapped in favor of Black Max shocks and both track bars have been replaced. This made a small, but noticeable improvement. After inspecting the suspension closer, a couple lower control arm bushings are cracked, with one having a significant split. A new set of Savvy arms have been on order over a month. However, I have no idea how long it will be before they're back in stock. My guess is that will make a dramatic improvement.
One thing I've learned from this is that picking the correct parts, and carefully planning your build, makes all the difference in the world!