Yes. The Mad-Ramps Pivoting Ramp System for ATV/UTV Ramps - 1,400-lbs - 2" Hitch # MR54FR is Mad-Ramps part number MR1400; we do not use the same part numbers as manufacturers in some cases, but the manufacturer's part number is available at the bottom of the "All Info" section. view full answer...
You can confirm your axle capacity by pulling one of your hubs and looking at the reference numbers on the side of the bearing cages. A 3500 lb axle typically has an L68149 inner/L44649 outer bearing.
Torsion axles do indeed wear over time which is almost certainly what's happened in your case. As you mentioned 3-4 inches is what you typically want to see as far as fender/ wheel well clearance goes. At this juncture changing the tire size to a 185/80-13 will only provide you a bit above... view full answer...