If you are towing how nice would it be to always have the car level ?
And how nice to be able to hit a switch and raise it up or stiffen it up ?
I had 4 big fat adults in mine the other day and before I left the driveway the car was perfectly level , was going down the freeway so had the TEMS off for a nice soft ride , after I dropped the fat dude's off , hit the TEMS switch so I could hit the corners again , very nice .
Also consider that the rest of the suspension is 15 years old as well , I would be going new wheel bearings , new lower ball joints , new inner rack ends , new tie rod ball joints , and new radius rod bushings as well .
Then you can think about doing the rear .
There seems to be a ground flow against the LS400 airbag system ??
Don't understand why .
In real terms it's actually very cheap .