This is an OEM type LEFT rocker panel & inner 2 piece set for your
73-87 Chevy GMC Truck
73-91 Chevy GMC Blazer/Jimmy
73-91 Chevy GMC Suburban

Fits regular cab, blazer, suburban & crew cab (front only)
Left side = Drivers side

Right side = Passengers side

Outer rocker measures about 47" x 4"
Inner rocker measures about 30" x 4"

If your rocker is rusted enough a "slip-on" style will not cover you Then this is the panel you need.....!

Left = Drivers side
Right = passengers side

KEYPART