This is the ultimate 3500 lb HD axle kit with 2 electric brakes. With their 3" tube diameter, the "Heavy-Duty" is real ! 

Don't worry, this complete 3500lb heavy duty trailer axle replacement set won't let you down. It includes the axle, blades,madrins and all the hardware required for a refurbishment.

Turn your trailer into a true showpiece with this Heavy Duty 4" dropped trailer axle. This kit will give your trailer a unique and attractive look, while also providing improved stability and maneuverability

The complete 4" lowered single-axle heavy duty trailer axle set with electric brakes and 5 studs, rated for 3500lbs, is designed for your trailer's safety and stability. It includes electric brakes for improved braking performance, a load capacity of 3500lbs and a lowered design for a lower center of gravity.