The best option for lifting your torsion axle and getting a better ride quality would involve changing over to a Timbren Heavy-Duty Axle-Less Trailer Suspension. They have a couple options that will incorporate a lift right in the spindle. A 2" Lift # TASR35HDS07 or a 4" Lift # ASR3500S06. These utilize a rubber suspension system that each work independently of each other. This will offer you a better and smoother ride quality.
We do not carry any type of shock kits for torsion axle's... view full answer...