With your axles bending constantly and not having the correct spring center mounting, The Timbren Axle-Less Suspension # ASR5200S01 would be a great replacement for your 2018 Starcraft Satellite 18MK.
Using the system mentioned above it gives you two independent units that can eliminate the need for a thru axle. Doing this will increase your ground clearance and will fit any trailer width. The Timbrens are easy to install and align. They can either be bolted on or welded onto your trailer's... view full answer...