Moved to the Rockwood sub-forum since the OP is asking for model-specific and it is a GeoPro trailer made by Rockwood.
Your trailer has a torsion suspension axle, as does all Rockwood/Flagstaff trailers.
Did you buy it new or used? It is not designed to be backcountry rig.
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Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity