I have a 2008 EZ Loader tandem trailer for a 21ft Skeeter. I have a torsion arm that is loose on the axle causing my tire to camber out and wear excessively on the inside, evidently it is worn out as tightening the bolt doesnt help. I had the one on the opposite side wear out several years ago to the point it was spinning on the splines, it was replaced under warranty along with the axle (my 3rd one). EZ Loader sells them through their website they have a 3750 lb and 5200 lb, which would be correct for my trailer? Anywhere that might sell that same torsion arm assembly for less?