Fix the weak point in your OBS frame. The section behind the shackle mount is where these frames tend to crack and fail.
We designed this kit in two pieces to box in the C-channel section that Ford missed and another to fill in the shackle pocket that isn't used when doing a Coil Swap conversion or a Front Shackle Reversal. This is designed for the 4x4 frame. A 2wd version will be available in the future.
As you can see on this frame we are doing a coil swap and filled all unused holes, including the shackle hole. If you're doing a shackle reversal you will need this hole and if you do the shackle pocket kit you will need to drill this hole and remove the spacer from the hanger.