larry2

My old 93 LS400 has 330K on it and definitely tired rear suspension even though no leaks from shocks. Any advice re options for changing springs/shocks for original ride or may be slightly firmer. I want to get back good ride quality. OEM is predictable way to go but wondering if I can retain simiilar or better/mor flexible ride with added adjustability with an air suspension setup ? Any experience with air conversions including businesses in TO area offering this ? I do NOT want a low rider just an LS400 that can take a bit of payload and better handling without ride quality suffering unduly. Being able to raise ride height on occassions would be good too. Thanks..

Brake rotors have been replaced twice. All the work on the vehicle has been done by the Lexus dealer except oil changes.

Had vibration issue with my '93 since I bought it '97 - occurred around 100-110kmh and worse when under load . It had 115000km on then. I took it to the Lexus dealer. He balanced wheels - did not fix it. I asked them to swap wheels with a demonstrator to rule out wheels/tires altogether, just to try it. They refused but decided it was the driveshaft - it got replaced, Lexus coughed up 50% of replacement. It somewhat fixed it, but came back shortly afterwards. Years went by - I just tried to keep it over 120. Replacement tires did not help. Second set of replacement tires at new dealership in another city with full alignment - 90% fixed, at least for a few thousand kms. Problem is back again although not as bad, but now at 115 - 125ish. It seems quite variable and hard to describe - some days worse than others. The car now has over 300km and is still a lovely jubbly cruise ship. I've considered new replacement C class Benz or G35 but test drive disappointing - no replacement for the silky LS. By the way my car is called Larry. I bought a Land Rover Disco couple of years back too, but could not part with Larry. These cars seem to have a definite and strange susceptibility to vibration. Can some informed Lexus mechanic gives us the full goods on this so we can get it fixed and enjoy them to the full, please ?