BAK X4s

tboat · September 5, 2021

Anybody running an BAK X4s on a short bed Sierra? I am thinking about buying one. I would be interested to know your thoughts about performance, installation, and tightness. Also, did you have to remove grab handle on the inside of the bed and can the the cover be operated with the tailgate in any position?

Thanks

calgator73 · September 5, 2021

I've got this on the carbon bed. Really good attention to detail and smooth operation. No problems closing with the tailgate in any position. Grab handle does not interfere.

WeGone · September 5, 2021

Put one on mine a few months back love it great fit easy install. Works with grab handle and multi-gate. Plus it does NOT cover the third brake light so if you have bed/rear camera it still works when open up against cab.

Edited September 8, 2021 by WeGone

8x180 · September 6, 2021

I have had one for about 5-6 weeks and really like it. The folding ones block the rear window and brake light as stated above. I have had the canister ones and while loosing 8-10 inches is no big deal with an 8' bed I did not want to give that space up in a 6.6 bed and I really would not want to in the really short beds that most of you all have.

The other nice thing is how flush it sits. I would guess its only about 1/8 inch above the rails. and takes up hardly any bed space. The only down fall if it is one is that it is either open or closed and there is no middle ground but it is a small price for such a great cover.

Install is easy as well.

Eugene Walsworth · September 7, 2021

I purchased one from dealer when buying my 2020 Silverado LB a couple years ago. Open/close/latch is done with tailgate open, which somewhat secures it.

Pros: Looks Awesome, easy to use and maintain. For partial loads, I string a rope thru the middle & secure it.

Cons:

Plastic buckles on retaining straps, when open, can break easily due to angle of latch. One of mine broke the first time I tried to latch. Dealer did replace under warranty. Just have to be cautious.

Too much water intrusion at front corners. I live in Western Washington, so get nice winter rains. Dealer reinstalled it and while intrusion slowed some, still frustratingly much.

When wet inside bed, condensation forms inside on the aluminum, contributing to more moisture and the felt can then get wet. All this can then freeze.

You must keep the track part of rails and bottom of cover that sits in track lubed (silicon) during times of winter rain/freeze weather we get here, otherwise you cannot open the cover till the track thaws.

Black cover/Aluminum construction has high thermal loading which can burn during summer if not careful.

Overall, I like the cover for looks, security and ease of operation. I get frustrated with the water intrusion, and incorporate it into my planning.

8x180 · September 7, 2021

Eugene Walsworth,

You have the X4. The cover has been updated and is now the X4S. The way the plastic buckles attach has been fixed and works very well now. There are no longer any felt pieces to get wet as well as a few other improvements.

I cannot test to water entry until we get our winter rains but so far it seems about normal. No cover is water tight but if it keeps the bulk out and is mostly around the tailgate and front of the bed where it will drain is about all you can wish for from any cover.

GullLakeMi · September 7, 2021

On 9/5/2021 at 4:34 PM, WeGone said:

Put one on mine a few months back love it great fit easy install. Works with grab handle and multi-gate. Plus it does not cover the third brake light so if you have bed/rear camera when open up against cab.

I have the MX4 on my '21 Sierra AT4 with Carbon Pro bed. When opened up, it does cover the rear window, but not the brake light or camera's mounted there. I flip the rear view mirror to camera mode and all good. My observation is the panel next to the cab that does not fold is a little wider than previous having the folded panels at more of an angle against the cab and possibly lower overall.

tommyxc · September 8, 2021

I have the x4s on my 21 AT4 short bed. I am currently on my 3rd cover since may, the first 2 came apart at the seams. So far truck hero has replaced them no problem. They swear the problem in manufacturing has been corrected