A buddy of mine was checking out my Leer Trilogy cover on my 2016 (SCREW 4X4, 5.0) and we both noticed how much the sides of the bed appeared to move when walking around in the bed. With the cover locked down I walked along the tailgate and you could see the movement along the top of the bed rails where it lines up with the cover. It would move almost an inch in either direction depending on which side of the tailgate you were on. He thought it was the frame flexing but I'm not sure that's possible.

Has anyone else noticed this? Is it normal? I think it's the same effect you see in the videos where they drive up articulation ramps and try to open the tailgate but can't because of the twist.

 

I haven't noticed it, but then again it's really common in trucks as the the frame is supporting two different body structures with no connection to each other except for the frame itself. I'd say you're over thinking it, but that's just me.

 

Howdy.

Yer gonna have to post a video. A closed and locked cover is essentially going to anchor the bed sides - lateral movement of the magnitude that you describe is rather difficult to imagine.

I poured a cuppa and just finished jumping up and down on my 'gate - neither bedside moved one iota.

I do hope yer not trolling here - not cool. Prove yer not.

IF yer not, good luck finding the root cause. Don't think it's the frame - that thang is stout.

Good luck.

MGD

 

The frame is made to flex in certain areas. It's part of the suspension. Toyota used to advertise how the Tundra frame was designed to flex to improve the ride. how much you weigh will also affect the amount for flex you observe.

 

Howdy.

If walking on the tailgate results in this much deflection on the frame, I will eat my hat, AND my cat

MGD

 

A bed is a 3 sided structure with no support holding the tops of the bedsides together. You're gonna see a little bit of flex.

 

What condiments would you like with your lunch?

We don't know how much weight is being placed on a corner of the tail gate. My paltry 160lbs with a little flexing of the knees can induce a 1/4 inch deflection standing on the front edge of the tailgate as observed at the corner edge of the bacflip VP tonneau.

While the frame is indeed robust under the cab the part under the box is not so much.

 

This is what I'm seeing on mine. I weigh about 220lbs and can make it move around a 1/2in if I put my weight on one corner and move around. My friend and I both on there probably weighed about 460 and it was really moving with both.

 

I was able to replicate it somewhat in this video by pushing down on the tailgate. I couldn't capture much deflection since I was pushing down one handed but you get the idea.

 

I dunno looks to me like the top is moving not the bed.