of road hitch or not

thank you I might change it to an of road hitch I do intend to go on the OTT

I thought they had a do35 hitch I might be wrong tho

Wasn't that roll over because the suspension failed on the LHS of the trailer?

No.
We were travelling at 100kph and the LH wheel of the trailer hit a rock that was about 350mm diameter on the side of the road. The trailer spun clockwise in the air for 240 degrees, hit the ground smashing the tinny, bounced and then rolled back to where it stopped.
It broke the rear eye off the LH spring which then punched a hole in the bottom of the trailer, destroyed the tyre, broke the U bolts and badly bent the rim.

We left the tinny at the Ellenbrae dump (where we also made repairs to the trailer). They dragged into the house garden and planted flowers in it, then someone patched it up and they now use it as a ferry across the river in the wet between the house and the air strip, so it lives on :)
Cheers,
Peter
OKA196 motorhome

Given the results, better the trailer wheel hit the rock than a MH wheel.

Just luck it happened the way it did. Could have been much worse, but I reckon the fully articulating Tregg saved the day.
CORRECTION: the trailer spun clockwise for about 135 degrees (45 degrees short of up side down) then back 225 degrees after it hit the ground.
The F350 took a couple of violent L-R-L swings, but stayed on all 4 wheels.
Cheers,
Peter
OKA196 motorhome

Speed kills, both machinery and lives.

Yep. We got off very lightly under the circumstances.
Cheers,
Peter
OKA196 motorhome