New GM timing cover assembly for LS based engines with the sensor in the cover.  This assembly includes a new GM front cover seal, GM crank seal, GM sensor and extension harness, and new hardware.  For all LS2, LS3 (Wet sump only), LS6 and 2005 and later LS blocks with the cam sensor in the cover without DOD/AFM (Displacement on Demand/Active Fuel Management)    Can be used on older blocks if converting to the newer style setup (also requires timing set and crank sensor change).  Factory installed on:

05-13 LS2/LS3 Corvette
05-06 LS2 GTO
06-07 LS6 CTS-V