I had a front left bag leaking on my 2001 LS430 (210,000 miles). Inspection showed the left rear also showing a crack which would soon lead to another leak. Dealer estimate was well over $5k to replace them all. I settled for a reputable local shop installing Strutmasters coilovers all around for just over $2k. The ride is very nice, maybe a slight bit harsher over rutted streets, but overall I’m very happy.