Bracket and pulley takes the place of smog (A.I.R.) pump on the above serpentine kits. Also fits the passenger side serpentine bracket from 1988-1993 Caprice,1988-1992 Camaro,Firebird & 1991-1993 Chevy Full size trucks with 454.
Will require a different belt if used to eliminate a AIR pump. You will need to determine belt length by measurement.