• The timing tool set includes the tools required to properly service GM Atlas/Vortec engine family
• Kit includes: GM Lower Timing Gear Retainer Wedge, GM 4.2L Camshaft Holding Tool & GM Flywheel Holding Tool
• Services: I4 2.8L 2800, I5 3.5L 3500, I5 3.7L 3700 Atlas/Vortec engines found in Buick, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile & Saab models
• Compare to GM Factory Tools EN-48464, J-44221 & EN-46547
• NOTE: 5047 camshaft holder and 7459 gear retainer also works on the I6 4.2L, but the flywheel holder doesn't. The I6 4.2L requires J-44226 instead
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