I recently purchased a 2004 RX 330 AWD with 168,000 miles on it. Pretty clean car with the exception of the air struts. The RF had been replaced about 3-4 years ago but the others were now all failing. Over night the car would be sagging on all corners except the RF. So, after doing some research, I went with the Strutmaster DIY conversion kit. I won't say it was simple, but it wasn't very difficult. I don't know what the ride was like prior, I did't drive it much before the conversion, but I'm pleased with the ride.

2 questions- do I need to get a 4 wheel alignment? And, is there any market for the one good strut?

Thanks in advance.

 

If it's pulling any direction, or you notice uneven wear on tires, get it aligned ASAP.

 

It is possible to sell the air suspension. I almost bought a set of used ones when I had my 2004.

Also, with what you just saved in dollars, you may want to do an alignment.:-) Some dealers will say that there's really not much to adjust if replacement is OEM. It may be a different story with after market.