The M-29-TI Titanium Body Moun Pad bushing is used on the funny car body mount pad for the spaghetti to weld to. The bushing is made from 1/2 6-4 titanium RD bar and measures 0.272" I.D., 7/16" O.D., and length is 1 3/8". There is a pdf chart that can be downloaded from our website, http://mckinneycorp.com/downloads/pdf/bushing.pdf, that will give you a list of some of the bushings that we carry. Should you not be able to find the bushing that you're looking for, call and we'll be happy to assist you in finding what you need.bushing.