TM 10-3930-659-34 4-11.  REAR OIL SEAL REPLACEMENT (Con’t). 2.  Using puller kit, remove rear oil seal (1) from fly- wheel housing (2). CAUTION Use care not to damage crankshaft when removing wear sleeve. NOTE Perform step 3 only if wear sleeve was not removed with rear oil seal. 3. Using small, sharp cold chisel, carefully cut wear sleeve (3) off crankshaft (4). 4-51