I pulled the luan off carefully to use it later. Hammerd out the center upright and took out the staples. Then for some reason basically laziness they only had one half of top strengthend by a second board. I took out this second board and staples. Now that left bottom board, top board, and the side upright boards. I set the drawers in on top of bottom bored and shimmed back to make level. I then measured the space between the top board and the top of drawers. The ripped down a 2x4 for that space. Squeezed that price in then measured space between sides and drawers and distance between bottom board and new top section and ripped 2x4 for that. Then screwed them all together. I set the drawers an eighth or 1/4 inch forward of the frame to prevent having to use trim pieces. Of course I forgot remove the top plastic so you don't damage so you can put back on once you cut luan pieces. I cut the luan on a table saw did the distance of sides from top to bottom and right up to drawer over hang. Then measured between the two side and cut those. This puts your seams under the drawers and above making them less noticeable. Used small finish nails to tack on luan and used liquid nails on bottom and used punch because hammer will not totally sink bottom nails due to only a 1/2 inch space. Then you put two screws in bottom of drawer board to secure it.
I hope this is understandable. Sorry took me so long to respond. We were driving to Ocean City today for bike week. Maiden trip with bike. Things went awesome. I see what you mention by the equalizer wdh pinching chains. Next project. Forrest river should read some of these threads to build a better trailer. Good luck with the drawer mods.
2016 Grey Wolf 26rr
2005 Honda VTX 1300
2002 F150 5.4L extended cab 6.5 bed
Ron & Shirley (Empty Nesters)