I think we need everyone to start sending E-mails to Rancho, Rough Country, Etc and ask if they plan on making a lift for the XK/WK Jeeps (same drivetrain).

As long as SL is the only manufacturer, they'll charge what they want and never improve upon their design.

I would not run ANY kit that's truly 4" of lift but does not correct CV, tie rod and balljoint angles. From a dynamics standpoint there's a few other issues involved due to the load paths and allowable travel with lifts like that as well... so no, i would not recommend the JBA right now. I would however run the SL kit with some nice adjustable coilovers (instead of the cheap spacer they give you... my #1 reason for not buying the kit yet). Add on some JBA UCA's that have a heavier duty and replaceable balljoint and you'd be in the realm of a sweet setup for these vehicles. But it really would be best if more companies tried to jump into the market for these vehicles...

Just one of many opinions though. Good luck!