This is a Left & Right inner rocker panel for your
1999-2006 Chevy & GMC Truck
As well as
2007-2015 Chevy & GMC Truck
Fits 1500, 2500, 3500 series
Extended Cab trucks 3 or 4 door ONLY!!
Fits under front door & rear door on inside of rocker panel
Left = Drivers side
Right = Passengers side
1.2MM thick! Best on the market!