I don't know if ill get lucky enough to find someone who has parted out an 81 82 250r front caliper, but all I need is the sleeve that acts as a bushing around the bolt that fastens the caliper to the mounting bracket. its a discontinued part that was changed to a pin slide in the following years. it is listed as a sleeve on bike bandit and the # is 655195 if there is any confusion. I just recently bought a NOS caliper and have everything I need to put it together except for the sleeve, so I don't really want to have to buy another complete caliper just for that part.