I know of two different c-clip eliminator for a Ford 8.8 Superior axle and Yukon . There may be others. What I would like to know is, are they a gimmick or are they a very important upgrade to the Ford 8.8 axle. I know some of the Pros are NO CLIP, Axle stays in axle tube if broken, new axles are super hard, the bearings are stronger than the roller bearing. I guess you don't have to take out your retainer pin to remove the c-clip, to remove the axle. I'm guessing installing lockers are easier to install and or maintain. Please share your opinion. thanks!!