I have a 2RZ installed on my truck. Got 1/2 drop instead of 2/3. 1/3 expected. The front shock caps are oversized in diameter, making for a PITA regal setup. Rear installation took less than 40 minutes. The front ones lasted about 3-1/2 hours. The ride quality after 2 weeks is horrendous. In stock, the truck bounced like a pogo stick after I hit a bump. Now she's hard as a board. Definitely hard on the back! The benefits are a dramatic improvement in handling and appearance. I will update after replacing the diesel engine.