Another M1102 trailer rack build thread...

TeamAnvil

New member
Since I got help from the community in my design and materiel selections I feel its only proper to share (over-share lol) with you all where this is going.

I bought my trailer about three years ago and have loved it every time I take it out. I always wanted a rack for it and considered several commercial options from modified truck racks, to ladder/surf style racks to the overly engineered and ridiculously expensive Leitner ACS truck rack. If you haven't seen the vid you should check it out I'll have to admit this was a huge inspiration in my design and confirmed a few things I already had in my head.

The main goal of my design is to carry stuff, not so much to "live in" so a great rack (lol) and storage is a top priority. I already have a 40 gal. fresh water tank installed, a pump and accumulator to follow. I have a 2000 watt solar set up (panels, controller, inverter and battery). The system will more than likely be hard wired into the trailer but the panels will be "remote." A RTT will come soon when the rack is complete along with a 180 or 270 degree awning. Roll-out drawers for storage, kitchen, etc. are also in the plan. I also happened to have the bulk of the tubing available from a previous job that cost me nothing.

Starting with the corners I choose cold rolled steel plate at .25" thick. I bought 8" wide plate and cut them down in my band saw. I recently rebuilt the coolant system and the cuts came out great. From there I marked and drilled the plates to use the rivet-nuts installed at the factory. The angle cuts where done with a plasma cutter then cleaned up with a grinder and large sanding disk. To tie the corners in I used 2.5" x .25" cold rolled steel bar. To make the perimeter frame even all the way around the sides and front I added 2" x .125" bar sections underneath. I could have sourced .375 thick steel for the sides but didn't want the extra weight and I already purchased the .25" bar and didn't want it sitting around for years.

The uprights are 1.5" x 3" .070" wall rectangle tube. The first part is ~9" tall and cuts back 20 degrees into the trailer. This follows the outline of the Leitner GeardPOD's and will replicate the look of the ACS rack when done. The rack will hold four GearPOD DUAL's. You can see where I am at with this below. Later today I hope to tack weld the verticals in and get the cross bars figured out.
 

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Kfred 513

New member
Awesome! Looks like off to a good start. I like the idea of the angle on the risers, it will look more professional for sure. After using our 270 awning on a bunch of trips, I would honestly suggest buying a nice ground tent for shade/rain shelter. The 270 awning fills up with water between support arms and must be manually drained, not the end of the world, but not good if it rains all night or while you're away from the rig. I'm also scared anytime it gets windy with all that leverage on the hinges. It's a cool thing to have and is great for shade, but if I could go back, I would spend money on a nice ground tent to set up for a shady/rain proof retreat.
 

TeamAnvil

New member
Awesome! Looks like off to a good start. I like the idea of the angle on the risers, it will look more professional for sure. After using our 270 awning on a bunch of trips, I would honestly suggest buying a nice ground tent for shade/rain shelter. The 270 awning fills up with water between support arms and must be manually drained, not the end of the world, but not good if it rains all night or while you're away from the rig. I'm also scared anytime it gets windy with all that leverage on the hinges. It's a cool thing to have and is great for shade, but if I could go back, I would spend money on a nice ground tent to set up for a shady/rain proof retreat.
Thanks Kfed, really made some good progress today. Love the info on the 270 awning. Honestly I am a fair-weather camper but my last few outings we've been cursed with down pours. I'm sorta done with camping on the ground so plans are for a RTT eventually. I do have a few real nice ground tents.
 

TeamAnvil

New member
Progress! Got the verticals tacked in place and then laid out the cross bars, cut and tacked them in. Ran short for my middle bar so I used what was left for the center front vertical and the rear verticals at the edge of the tail gate. We had lively discussions at the shop on how to finish the cross bars; two were in the over hang camp and two were voting for angle cuts to match and no overhang. They are just a tad shy of the overall width of the trail. They could be used for storage or to hang work lights from. Tomorrow I'm off to the steel supplier for the last few sticks of material.
 

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TeamAnvil

New member
Last week I was able to finish up the first version of the rack. I had everything tacked in place then welded all the base posts, vertical and top joints. To save my back and not eat weld spatter we slid the rack off the trailer with the help of my forklift then flipped it upside down on the shop floor so I didn't have to weld anything upside down. I alternated sides and corners as I welded and tried to minimize any bending or warping. When we put the rack back on and bolted it down it went in pretty easy. There was only one corner that required some love to get the bolt holes to line up. I planned to install center posts that rest on the wheel wells but for my trial run next week I decided to leave them off for now. I'll wait until I get the GearPOD's hung and see what the interior looks like before I make a decision on those. They run inline to the vertical posts that sit inboard at the front and back.
 

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TeamAnvil

New member
Well the rack worked as expected and carried everything we needed to the desert earlier this summer. It's built well above any load I would ever put on it and there is very little deflection in the top hoop/bars when loaded AND my 16 y.o. son jumping up and down on it. The middle posts to the fenders will only strengthen the top when installed. Here are some pics of all the stuff we haul out. I think this is our last year of one truck and trailer. There were 5 of us for 5 days then 3 for another 5 days. We used every bit of the 40 gallons of fresh water in the tank. It's nose heavy on the way out but lightens up significantly on the way back. There is also WAY TOO much in the bed of my Raptor. Another truck to share the load would be ideal.

This winter I plan to get the Leitner Designs GearPODs installed (on order), install and wire the on-board battery/inverter/power distro, install and plumb the water pump and design/build out the front rack to hold the spare tire, recovery gear, fuel, etc. Should keep me busy!
 

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