looks like a u bolt. it sits at the top of the frame where the rear shocks go.
pita to get a wrench in the top nut while putting a socket on the bolt.
this kit eliminates that, all that needs to be removed is the lower nut on u bolt now.
not to take any business from bill, but i have a couple of kits laying around, pm me for details. i purchased about 5 kits from him, just selling what is left over