off road trailer coupler

mesha

By endurance we conquer
Supporting Vendor
Location
A.F.
The scary part about that is, I've seen more than once those teraflex arms separate and flatten threads as a rear control arm. Kinda scares me to think it could separate and bye bye trailer.
I think that is why he said he welded a very thick washer on the end in case the threads fail. Maybe I mis-read and you are talking about a different thing.
 

Bob B

Registered User
Exactly! Theres 6ish inches of threads engaged, so failure is lowered, but incase they do, there is a thick "washer" welded to the end as a safety, so NO bye bye trailer..
 
I think that is why he said he welded a very thick washer on the end in case the threads fail. Maybe I mis-read and you are talking about a different thing.
Nope I some how missed the thick washer part.
Exactly! Theres 6ish inches of threads engaged, so failure is lowered, but incase they do, there is a thick "washer" welded to the end as a safety, so NO bye bye trailer..
As said above I missed the thick washer part somehow :doh: sounds a lot safer now :)
 

mesha

By endurance we conquer
Supporting Vendor
Location
A.F.
Here is what we ended up with.

We didn't weld a washer on the backside. I don't think it is needed. There was a ton of thread engagement and if I keep it lubed it should be fine. If it starts to look suspect then I will drill and tap the inside for a bolt to retain the arm.

The bracket is made of 1/4" steel and we bent it so it wouldn't bind on full turn. The bushing got here today and I plan to assemble it tonight and then start working on the trailer side.
 

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mesha

By endurance we conquer
Supporting Vendor
Location
A.F.
Is it all 3/8"?
 

mesha

By endurance we conquer
Supporting Vendor
Location
A.F.
update:
I moved my hitch from my workbench to my shelf:(.

I will use it once I build my new trailer.
 

CobraNutt

Active Member
Location
Salt Lake City
Side note...I LOVE my Max Coupler! The story is that they are going through a redesign on the original coupler,
so I got the HD version from Adventure Trailers for the same price. This one is Class III, rated at 6000lbs.
Solid, and quiet!
Max-M.jpg
 

Hickey

Rusty Girdle
Premium Member
I was thinking about this issue today and came up with an alternative to using the Tera arm. What if you replaced it with a trailer spindle stub? Basically, you could use a spindle kit for a swingout tire carrier.
 

I Lean

Mbryson's hairdresser
Supporting Vendor
Location
Utah
I was thinking about this issue today and came up with an alternative to using the Tera arm. What if you replaced it with a trailer spindle stub? Basically, you could use a spindle kit for a swingout tire carrier.
I think that would certainly work, although it would be a bit bulky.

But, what is "this issue" you speak of? I only have 3 offroad trips on mine, but a fair amount of miles both on road and off. (best guess, around 2000 highway miles, 400+ offroad miles) Zero issues with my coupler. The bronze bushings were a bit loose after the Rubicon trip, but I just snugged down the 1" nut and it's tight again. Those bushings are an intentional wear part though, so I can replace them easily.
 

Hickey

Rusty Girdle
Premium Member
Just suggesting an alternative to the Tera arm, in case a person doesn't have one laying about.
 
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