The dividers are an option, they also come with a piece that lays over the two wells to make a flat floor surface. I made my own. I took coragated cardboard and made some templates, the traced that onto 1/4" luan plywood and cut them out, sanded them smooth and installed them. I didn't care about covering the wells so didn't do those pcs, just wanted to keep stuff on top from sliding into the wells. The corragated plastic is a good idea also. Anything that's about a 1/4" thick and stiff enough to hold up to stuff sliding into it will work. A whole bunch cheaper than the OEM plastic. Jeff.

 

Sorry about the double post, had another thought. For you hunters/shooters, I was able to put 2 scoped rifles in softcases in my rambox and close the lid easily. These are very padded cases since the rifles are scoped. I have also had 3 shootguns in softcases in one box but the cases are not as padded as the rifle cases since the shotguns get scratched up in the brush while quail hunting anyway. Really nice way to transport your guns, locked, dry, and dust free. Jeff.

 

The rambox option comes standard with the bed divider/extender. Dont let the dealer fool you in paying extra for this!!

 

CAUTION!!!!! CAUTION!!!! CAUTION!!!!
I had purchased the Rambox divider accessory which comes with lower compartment covers, dividers and nets for Rambox cover from mopar.com (mopar estore)...the instructions that came in the box called for the use of 3/8" drill bit!!! This has now left me with 4 holes to big for the plastic washers and pins to apply net!! CORRECT drill bit is 5/16".
I have contacted them of the issue and I am still waiting for a return call.
Has anyone else had this issue or resolution?