How To Install Putco Boss Locker Side Rails on your 2015-2016 Ford F-150

Congratulations on your purchase of a high quality PUTCO product. Should you need any application or technical assistance, feel free to call us at:

1-800-357-9261
Monday-Friday 8:00 a.m. - 5:00 p.m. (Central Standard Time)

Contact your PUTCO dealer for other quality accessories.
Please read all instructions before installation and to check to see that all parts are included.

For 5.5' Kit, Also Required:

- 3/8" Router Bit or equivalent
- Router or RotoZip Type Tool With Base and 1/4" Shank Chuck
- Drill
- 1/2" Drill Bit
- Hearing Protection

Note: (For 6.5' bed, start with Step 7. Steps 1 through 6 are for 5.5' beds only)

1. Measure, mark, and drill a 1/2" hole in the center of the two hidden FRONT stake pocket hole locations on the driver side and passenger side plastic rail caps. Location marked in (Figure 1a and 1b)

2. Set and tighten the router bit 3/8" from the router base to the end of the router bit cutter.

3. Turn on router and insert the router bit into the previously drilled 1/2" hole on the passenger side.

4. Slowly and gently guide the router until the bearings of the router bit touch an edge of the hidden pocket hole.

5. Guide the router slowly and gently in a counter-clockwise motion until the pocket is exposed (Figure 2). Repeat Step 5 if slag is present.

6. Repeat Steps 3, 4, and 5 for the driver side.

7. Remove the pocket hole covers located on the rear of the driver and passenger rail caps. For 6.5' beds, remove front driver and passenger covers as well.

8. Assemble black plastic bushings on all the locker end castings as shown (Figure 3). (This step does not apply for nylon end casting kits)

9. Assemble the mounting hardware on all the locker end castings in order as shown (Figure 4). Note: Each plastic gasket goes to a specific stake pocket hole that is marked on the plastic gasket. Refer to (Figure 5)

10. Insert locker end casting with the front driver plastic gasket into the driver front pocket hole at about a 45° angle in orientation shown in (Figure 6).

11. Slide rail rube over the plastic bushing on the installed end cap until it touches the plastic bushing flange.

12. Slide a locker end casting with the rear driver plastic gasket into the other end of the tube.

13. Insert the locker end casting into the rear driver pocket hole in same manner as step 10.

14. Once both locker end castings are in the holes, verify that front bracket is in the orientation shown in (Figure 4)

IMPORTANT: Both bracket flanges must rest on inner body panel for secure installation. Refer to (Figure 6) for locations.

15. Pull straight up on the front locker end casting so that the bracket and nut maintain contact and correct positioning with the bed as shown in Figure 4.

16. Rotate the plastic gasket until it's correctly oriented. Arrow on plastic gasket faces toward the front of truck. See (Figure 5)

17. Tighten the 5/16" bolt until the locker end casting is snug against the rail cap.

18. For rear pocket repeat steps 14 through 17. Confirm the tubes are fully seated in the locker castings before securing.

19. After locker end castings are snug to rail cap torque both front and rear 5/16" bolt to 132in-lb (11 ft-lb).

20. Repeat steps 11 through 20 for the passenger side.