Then we bolted on the North Race Cars rear caliper brackets, bracket spacers, and dust shields. Note: Left and righthand moan braces are optional at this point. Some cars may need them and some may not. I didn't install them on my car, and so far have had no issues with any rearend moan. These should come with your rear disc brake swap kit, or you can order them new through Ford (Moan Brace R.R. PN F4ZZ-2C366A, and L.R. PN F4ZZ-2C367A).