I have a 2002 with 131,131 miles (easy to remember, I took a picture : )
I was experiencing bouncy bounce and hard "thud" bottoming over the slightest of road imperfections.
I was not going to 'redesign the wheels' BUT I did find Monroe 40201 licensed NIVOMAT
shocks 'Load Leveling Suspension System' components on Amazon for about half the price, the next time I checked to write a post about them here, the price had jumped up double within a few weeks. I installed them and I am self leveling again
NOW, esteemed member LongVoyager made a post about being able to get the SACHS oem Nivomats from Rock Auto for about the same price I paid Amazon before the price hike a few months ago.
I enquired with Monroe whether my 40201
shocks had the five year or the lifetime warranty that Monroe advertises and they replied that NO, that neither warranty was applicable. The only warranty they honor is fresh out of the box upon visual inspection, they will replace as needed. WTF???
I DO NOT recommend Monroe 40201 for this reason any more.
Unless you are going to redesign the suspension by substitution, I'd check out RockAuto,com
AND search ToyotaNation for the current Rock Auto discount code, that is where I usually find it posted.