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Bakflip problem

cudaguy71

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I just purchased a 2021 Ram 1500 limited with rambox and mft.. I came with a Bakflip cover and box of hardware but it was not installed... It has the silver rails... I installed according to instructions but the cover sits about 1 in lower than the bed sides a d has a 1/2 in gap on both sides of cover... Anyone have problems with the fit on theirs? Thank you, Eddie
 
Can you post any pics to show what you’re concerned about? We have a BakFlip on our 2020 Limited with rambox and MFT. There needs to be a gap on the sides. Otherwise you can’t open the rambox lids.
 
FiberMax with that model number should fit perfectly on your 2021 Ram. It is not designed to work with the MFT, but it should if you installed it by sliding the guiderails onto these:

Screenshot 2025-04-21 at 8.23.03 PM.png
Screenshot 2025-04-22 at 5.17.55 AM.png

Did you install the FiberMax using clamps onto the "black" cargo management system rails or with clamps onto the above rails?

The BackFlip requires the above "silver" cargo management rails for installation by taking those rails off the bed and sliding the BakFlip guiderails onto them, then replacing those onto the bed with the screws. If you did that, I do not understand how it could sit 1" lower than your bed and should look like this:

Screenshot 2025-04-22 at 5.26.24 AM.png

Like mikeru82 asked, can you post a few pics of the installation? That would help us tremendously in helping you.
 
I have the silver rails and the instruction sheet shows mounting to the silver rails... The bakflip came laying in bed uninstalled when I purchased the truck, it only had a box of hardware, no rails, so I'm guessing that's why it was uninstalled... Do you by chance know part numbers and where I can get the guide rails? Thank you...
 

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