Bought for a 2006 Dodge Ram 4wd. I've changed bushings/bearings like this in the past but never had this much trouble getting the old ones out. Aries are notorious for putting bolts in stock and mine was no exception. I had to cut off the old screws with a saw. The socket was completely stuck in the forearm, but with the help of a saw, drill and hammer again it was removed. The old ones completely destroyed, but there was no other way out. After the control lever was sanded slightly, a large head and hammer helped set it in place. Perfect fit and no need for spacers for me (others have indicated they need to use all 4 on each rack) but I ended up using 2.