Review on Dorman Rear Rearward Leaf Spring Shackle: Enhanced Performance for Ford / Lincoln Models by Jeff Clites

Top bracket was wider than original, presumably to fit more cars; I had to additionally tighten to bend the bracket arms together to prevent leaf spring movement on my 2001 F150. Nuts were also much larger than OEM; good for functionality but does not include anti-rotation braces so you can tighten/loosen with just a ratchet/wrench. I ended up using an old rusty nut with clean threads because it was better than the new one in the kit.