M416 Trailer Kit
The light-weight M416 is a perfect platform to support outdoor family activities. Our goal is to create an affordable kit so that many more families can enjoy trailer supported adventures.
Original M416s have become increasingly hard to find and very expensive. The aftermarket responded with a wide range of overland trailers, but they are also priced out of many families budgets. Some industrious people have converted Harbor Freight® and similar trailers, but they are flimsy by comparison.
This website will provide all the information necessary to build an M416 trailer for your family. We will also provide links to vendors that can supply all the parts shipped to your doorstep - all you need are some basic hand tools and a drill. We will also support a community of people developing upgrades to their trailers. We believe the trailer should grow with your family, and be an opportunity to bond with your kids during the upgrade process.
- A DIY kit that is built by a parent and child, and brings them together
- Can be built in one easy weekend (~two six hour days)
- Bolt together - no welding required
- Under $1000 ready-to-go
- 550 pounds unloaded
- Military grade durability
- Axle width, wheels, and tires match tow vehicle
- Can be pulled with any light weight SUV such as a Subaru or RAV4
- The base trailer is a platform to build upon - over time add a roof top tent, shovel and axe, High-lift jack, spare tire, hot water shower, solar powered batteries, propane tank, etc.
- Both spring-over and spring-under options for different lift heights
How To Hit Our Goals
- Trailer is provided in kit form - sweat equity will drop the cost
- Use as many standard trailer parts as possible
- Cut out the middle-man. You purchase directly from the parts manufacturers
- Help arrange group buys. Any parts that need special manufacturing, we can band together and drop the cost down.
- Engineered design: Let's have an engineer verify the design. This will lower the costs and weight by avoiding over-engineering, and will help families avoid extra costs from trial and error.
- Is anyone interested in a "wide" version, ~4" to 6" wider in the tub and frame, to match the wider track of modern vehicles?
- Is an 18 gauge tub OK? Our thinking is form follows function - a thinner tub is much lighter, and even though it's more easily dented, it will get you home.
- Should the tub have a tailgate?
- A fixed pintle for the base model? If we use a 2" receiver tube from the trailer it will be easy to swap in a rotating lunette upgrade.
- Is a plywood floor OK? Yes, I know this is a big deviation from the original, but it's easy for families to source locally and inexpensively.
- Is anyone interested in just the trailer frame without the tub?
- How about two gross vehicle weight ratings: 1200 pounds, and 2000 pounds? Both could be pulled with Class I trailer hitches, but the 1200 pound version would have lighter springs for a less bouncy ride.
- Should the base version include shocks?
The above questions have been posted to the Expedition Portal trailer forum, please post your responses there.