My '98 XJ Sport is begging for a suspension upgrade but I need to start on the cheap! I have a Tomken 2" kit but after reading all the posts about driveline vibration I'm starting to worry already without having twisted a wrench. Has anyone installed a budget boost on a 98 without vibration problems? Would I be better off to wait until I can afford a SYE and a full 3" kit? My wife does drive it OCCASIONALLY and would not be real happy with the vibes. Any opinions appreciated!