This mount is for the vehicles listed below:

1999 - 2002 Chevrolet 2500 Silverado (4X4)
1999 - 2002 GM 2500 Sierra (4X4)
2001 - 2002 Chevrolet K3500 Pickup (4X4)
2001 - 2002 GM K3500 Pickup (4X4)

Parts List and Installation Instructions