COMP Cams 4914 Crankshaft Socket for GM Gen III/IV LS-Type Engines
Brand: Comp Cams
For GM Gen III/IV LS type engines
Specially designed 1/2 inch drive socket allows rotation of engine assembly
Knurled retaining nut that holds degree wheel in place
Can be loosened while on crank snout so that wheel can be turned independent of the engine when finding TDC