Can be used on or off the vehicle during brake pad replacement to push the piston back into the caliper. Thick pushing plate (3/16") and wide, threaded collars are designed for heavy-duty applications. Works on: 1998-2001 Chevy Lumina 1998-2004 Chevy Monte Carlo 2000-2004 Chevy Impala 1998-2004 Buick Regal 1998-1999 Olds Cutlass 1998-2004 Pontiac Grand Prix 1997-2004 Ford F-250, F-300, F-450 trucks