Front Axle Upper Steering Knuckle Gusset Kit fits 07-18 Jeep JK WranglerWeld on Knuckle Gussets from JKS Manufacturing eliminate bending of the inner knuckles on the front axles of Wrangler JK models. These heavy duty profiled gussets are welded directly to the inner knuckles and axle tubes to dramatically increase inner knuckle strength while extending the life of ball joints. Knuckle Gussets are laser cut from 5 8 thick steel to guarantee precise fitment on factory Dana 44 or Dana 30 front axles. They are strongly