I can help you determine the right replacement leaf springs for your 2021 Shadow Cruiser 248RKS, though we don't have any way of knowing what specific ones you need. It's pretty easy though, as what you'll need to do is measure your current leaf springs from center-to-center of the spring eyes, and you also need to know the weight rating of your axle. I looked up your trailer's specs and you likely have 3,500 lb or 4,000 lb axles, but you will want to verify.
Also keep in mind leaf springs... view full answer...