The upper control arm mounting bolts on many Nissan Trucks and SUV's are frequently corroded and must be cut out when removing or replacing the control arm. This hardware replacement kit (2) allows easy re - installation of the upper control arm. The pairof bolts and nuts are enough to replace both bolts in one corner or to replace the rearward bolt on both upper control arms if you are cutting them out to replace both arms. California Residents WARNING