Front Tongue Cargo Box Install

[Boilermaker Chemist]

After purchase of our OE II, I realized the first thing that I wanted to add was a cargo box for more external storage. Based on various posts in this forum, I decided to go with either the Arksen 29” Diamond plate (4.3 CF) or the Dee Zee DZ91717P (5.4 CF). While the Arksen has a look that more closely aligns with the Oliver, I chose the Dee Zee because of the larger capacity. As I will explain later, this turned out to be a problem.

With regard to any modifications to our Oliver, my goals are to (1) minimize any drilled holes and (2) try to be consistent with Oliver installation techniques. With that in mind, I decided to use the same U-bolts that Oliver uses to attach their aluminum storage basket and purchased two of them from the factory (part #10839). This had an additional benefit since I only needed to drill two holes through the fiberglass (near the tongue jack) - the other U-bolt would be fastened at the tongue. Also, when it comes time to sell, it should be very easy to replace this box with Oliver’s basket should the new owner want to do so.

Instead of buying the U-bolt plates from Oliver, I cut and drilled some old garage door hardware that I had laying around (apparently DW is right when she says I never throw anything away). To avoid the possibility of galvanic corrosion I placed pieces of vinyl siding between the steel plates and the aluminum tongue.

Positioning and drilling the holes through the fiberglass was a little trickier than I had anticipated. They say measure twice, cut once. Not wanting to screw it up, I think I measured it six times. There isn’t enough space to get a drill directly underneath the fiberglass so I had to use a ¼” x 12” bit to drill the first hole, enlarging it to 3/8” from the top side. Once that hole was drilled, I used the U-bolt to determine the position for the second hole and drilled that from the top, first ¼”, then 3/8”. I then used my Dremel with a pointed abrasive cone to slightly taper the holes as others on this forum have advised to prevent cracking of the gel coat.

 

Now comes the problem with the Dee Zee box. As you can see from the photo, there is an indentation in the rear of the box exactly where the rear U-bolt needs to be! (What did I say about measuring twice?) After considering other fastening strategies, most of which included drilling many more holes, I finally relented and decided to go with the Arksen instead.

I trimmed a piece of interlocking foam utility mat (Designer’s Image 765-5058, 0.43” thickness) to use as a cushion between the box and the fiberglass. As luck would have it, I happened to have four 4” x 4” x 3/8” rubber vibration pads (UPE Group) laying around (did I mention that I never throw anything away?). After trimming to the width of the tongue with a razor blade knife I stacked the four pads and secured them to the tongue with 24” long cable ties. The ribs on the pads allowed them to interlock and stack nicely. And four of those pads adds just enough height to make the box level.

To beef up the bottom of the cargo box, I added a piece of ½” plywood. To minimize moisture entry from the bottom, I used gasket cutters to make tight-fitting washers from 1/8” rubber packing sheet and placed them on the U-bolts between the plywood and the interior bottom of the box. The U-bolts were then fastened down with the steel plates using SS nylon-insert lock nuts. Permatex nickel anti-sieze was used on the threads to assist future removal, if needed.

Overall, I am quite happy with this install. Special thanks to MAX Burner for giving us a tour of Casablanca at the rally in Alabama, including his own Arksen cargo box.

[Mike and Carol]

Nice install, great job!

[MAX Burner]

@Boilermaker Chemist - Great job mounting your cargo box - you;ll love having it, Mike!  It was a pleasure meeting you at the rally, brother!

Cheers!

[katanapilot]

Nice installation.  Do you know if (2) Honda 2000/2200 watt generators will fit in this box? I could do the math but I'm a bit lazy.

[Boilermaker Chemist]

@katanapilot Sorry, I do not, but below are the dimensions (I assume exterior) from Amazon's site.  If this seems like it's in the ball park, let me know and I can get you more accurate dimensions from the interior.

[Patriot]

Good looking cargo box and you will be really glad to have it. Well done!