Porsche RND RS Roller IMS Bearing Replacement Retrofit Kit Boxster 911 655019 99310541901 and precision bent unions between 99662080300 and precision bent unions between the flange and center hub making this the finest engine stand yoke tool to support your Porsche engine rebuild during disassembly and reassembly Porsche Double row timing chain (intermediate shaft) with small sprockets for 996 Kit also includes adapters to pull stock and LN IMS bearings as well as our ez out tool which allow removal of the stock bearing when the center stud breaks during bearing extraction 2 Single Row Pro IMS Retrofit also requires purchase of Faultless IMS Tool 106 08