Kit Includes one new steel bearing insert sleeve (held to under .0002" total indicator reading), all necessary drill bits to drill oil feed and return holes, press plate that holds bearing sleeve insert in line with case bearing bore at time of installation, all necessary hardware and instructions May also be used to replace bearings for stock 88" or 96" engines utilizing the special JIMS precision insert Sleeve is several times stronger than stock aluminum case material that standard bearings ride in This tool is a must for the big-cubic-inch late-model Twin Cam engine builder Requires normal hand tools, hand drill and two-ton press Timken bearing not included Made in the U.S.A.. TOOL CASE BEARING CONV TC