After i had installed these i actually felt a diffrence, a more feeling the road type of feel, also stiffened my car up which is what i wanted cause these car's rear ends are known to roll under power. so it was a good purchae. i really liked the fact the bushing is in a metal sleeve. but the details YOU NEED TO KNOW are 1} you will need a press to at least press the new ones in. or you will need some sort of pressing tool. 2} after you remove the OE bushings you will need to clean surface good befor installing these new one, and might have to bore the hole a tiny bit bigger to clear the sleeze. 3} USE ANTI-SEIZE WHEN INSTALLING. its now going to be metal on metal since they are sleeved, so be sure to use anti-seize on the bushing, and any bolt you put back in!
bushings 10/10
skill level 5/10
