Rocky II ProKit Plus facilitates the Extractorless removal of broken exhaust manifold bolts on Ford 4.6L, 5.4L, 6.8L, Diesel 6.0L and 6.4L engines. Remove Broken Exhaust Manifold Studs Ford Gas/Diesel. Crown Victoria, Explorer, F-Series, Super Duty, Econoline Vans & Ford Drive Chassis. It is the smallest and thinnest available to fit behind the shock tower to make the repair. ProMaxx Toolâ??s exclusive screw-in bushings which incorporate proprietary mating angles that once seated, bring the bushing into perfect alignment with the cylinder head. Resulting in the most accurate and precise tool in the market. Other kits use inexpensive clamps or loose slip-fit bushings. Bolting Rocky II ord Gas 4.6L, 5.4L, 6.8L/Diesel 6.0L, 6.4L ProPlate in any position with our included precision fasteners provides unparalleled repeatable and predictable results. Received a previous repair attempt or botched repair? No Problem. ProMaxx Tools larger plate holes provide the use of a thread repair kit that includes bushings, bi, and solid steel inserts to completely restore the cylinder head to factory condition. Rocky II ProKit Plus Includes: â?? ProPlate (PMXRII200) â?? ProFastners (PMXPPF008500D) (2PK) â?? ProBushing (PMXPPB2125) â?? ProBushing (PMXPPB2188) â?? ProBushing (PMXPPB2270) â?? ProBushing (PMXPPB2320) â?? ProDrill Gold (PMXSSSC125) â?? ProDrill Gold (PMXSSSC188) â?? ProDrill Gold (PMXPSSC266) â?? ProTap (PMXPPT0080125) â?? PowerDrive Adapter (PMXPPD250) â?? Collet Adapter (PMXPSSCADP125/188) â?? Multi-Spline Extractor (PMXPPT188) â?? Multi-Spline Extractor (PMXPP