How to Install Putco Diamond Donuts - 1.75 in. - Black on your Sierra

Please read all instructions before beginning installation and be sure to check to see that all parts and hardware are included.

Step 1: Measure from center of stake pocket hole to toolbox, subtract 5/8 inch.

Step 2: Transfer measurements to bed rail, starting at the center of hole in pad.

<<NOTE: MEASURE TWICE, CUT ONCE. >>

Step 3: While holding Diamond Donut at appropriate place on toolbox, mark toolbox with a nail thru the center of donut. Drill 7/16” hole in the toolbox.

Step 4: Place the gasket between donut and the toolbox.

Step 5: Mount both donuts with the set screw facing 4 and 8 positions of a clock.

Step 6: Be sure set screws are not blocking groove.

Step 7: Install bed rails in the donuts and then fasten pads to rear stake pocket holes.

Step 8: Tighten set screws in Diamond Donuts.

Step 9: Verify all hardware is tight to complete the assembly.