Sierra 1500 2WD V8-5.3L VIN Z Flex Fuel (2006)
2.
Apply a 50 mm (2 in) wide piece of masking tape in this location and draw a small line on it. Refer to the illustration above.
3.
Next, not following the contour, measure 908 mm (35-3/4 in) from the back of the headliner forward to intersect the other measurement and draw
a line. Refer to the illustration above. Repeat for the other side.
4.
Lay a drop cloth under the drill locations.
5.
Using a 7.1 mm (9/32 in) drill bit with a drill stop attached 22 mm (7/8 in) from the tip of the drill, drill two holes through the headliner and roof
reinforcement at the two locations.
6.
Install the two retainers.