Can 5th Wheel Rails be Installed Over a Plastic Bed Liner on a 2012 GMC Sierra 2500HD

Updated 07/13/2015 | Published 07/10/2015

Question:

Hi, Can I install this over top of my bed liner or will I need to cut out a strip/portion of the liner and install right on the truck bed? 2012 GMC Sierra 2500HD crew cab, long box with a regular, plastic bed liner.

asked by: Brett

Helpful Expert Reply:

Since you have a plastic bed liner in your 2012 GMC Sierra 2500HD you will have to trim the liner in the foot print of the bed rails in order to install the kit, # C16411-204, in the truck. Plastic bed liners do not provide a stable surface which is why they have to be trimmed. All you will do is follow the instructions, linked for reference, to place the rails. Then trace around the rails, and then you can trim it with a rotary tool or similar.

I recommend taking the liner out of the bed so as not to cut any of the truck bed floor. I have linked videos showing installation of the kit and another on trimming bed liners!

expert reply by: Michael H