J-41479-B 4.8L, 5.3L, 5.7L, 6.0L, & 6.2L Rear Crankshaft Oil Seal Installer Set Alt ST-197

J-41479-B Rear Oil Seal Installer Set Alt Stallion ST-197 Applications: 4.8L, 5.3L, 5.7L, 6.0L, 6.2L and more If you have the following seal/rear housing part numbers 12639250 or 89060436 you need the following: J-41479-B.If you have the following seal/rear housing part numbers 14088556, 14088557 or 10088158 you need the following: J-35621-B. Supercharged 6.2L V8s will have a 9-bolt rear crankshaft flange due to their performance output. Previous tool J-41479 will not fit 9-bolt crankshafts. ST-197 will back-service to 1997. Unapproved installation methods may damage or incorrectly install the seal, resulting in leaks.