2 1/2" Short Length OEM Style Manual Mustang Rack Bumpsteer Kit is used with an OEM rack and pinion (9/16-18 UNF) and the (12") 1" shorter arms. Our kit eliminates unwanted bump steer created when chassis adjustments are made.  The kit features grade 8 hardware and FK JM series rod ends. You can not find a higher quality kit anywhere for the money. This kit requires that you drill the tapered hole in the steering arm to a 5/8" hole.