I picked up some roller ARB RD945 and didn't find a whole lot of mounting information on TR4. I thought id take some pics and go through the steps I took to mount these guys.
First I took out the carpet and tie down areas in the rear space (no 3rd row seating)
Shared album - Justin Davidson - Google Photos
There are two M6 threaded holes towards the front of the cargo area that are used for tie downs, and I added two additional towards the rear of the cargo area using a nutzert tool.
Using the carpet and cargo shelf, I traced a footprint onto a piece of 3/4' Plywood that I bolted to the cargo area, so that I would have a platform to mount the boxes onto.
Shared album - Justin Davidson - Google Photos
Once the footprint was cut, I was able to place it into the rear cargo area and mock up where I wanted to mount the drawers.
Shared album - Justin Davidson - Google Photos
After I figured out where I wanted to mount the drawers, I drilled out the footprint and planned on using T-Nuts and Flush bolts to hold the boxes down. I lined the platform in some carpet from the depot that matched the ARB boxes (even though not much would be seen). Ive seen some people mount straight to the wood, but I wanted to have a bit of a sound barrier between the cargo area and the wood.
Using the 2 existing M6 nut inserts, and the 2 additional nutzerts that I added, I bolted the platform down using M6 x 45MM bolts and washers.
Shared album - Justin Davidson - Google Photos
Before mounting the footprint into the cargo area, I inserted the T-nuts and secured them with epoxy glue to keep them im place while tightening the drawers to them.
Shared album - Justin Davidson - Google Photos
https://photos.app.goo.gl/WrL36jt5b1Pherfr6
Once I had the drawers secured in place, I put it all back together, and now have a great clean cargo area that is "hopefully" thief proof, and great for organizing my daily life as well as all my gear when I go out wheeling. Next up is the side filler kit that I have to customize for the rear of the 4th gen, but so far i really dig it.
https://photos.app.goo.gl/n9R1BQFFLA2dXp4d6
