This is a new black aluminum single groove key way (5/8" shaft) power steering pulley for early GM (up to 1984) and a new black aluminum power steering bracket kit for small block Chevy with Long Water Pump.
68-77 Ford F-Series Power Steering Pump Pulley V8, Black (Single Groove) F100
For Chevy SBC BBC 350 454 Single Groove Power Steering Pump Pulley Key Way Black
Single Groove Power Steering Pulley Saginaw Pump Keyway Style For SB & BB Chevy
RPC R8848 Early GM Keyway Style Single Groove Power Steering Pulley – Satin
Aluminum Single Groove Power Steering Pulley & Mounting Bracket GM Chevy SBC LWP
Polished Aluminum 3/8" Single Groove Power Steering Pump Pulley for GM Saginaw