T3369-BB • Ball Bearing 4th Main
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2.40Ball Bearing 4th Main - Following an old Model T race car modification, this shielded Ball Bearing 4th Main (Ball Cap) replaces the original babbitted ball cap. It has a sealed, permanently lubricated ball bearing which eliminates oil leaks and reduces vibration and crankshaft fatigue, a major cause of crankshaft breakage. Engine disassembly and machining required. With complete, easy-to-follow instructions. No core required!
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