Upgrade your trailer jack with this durable and removable trailer gearbox, designed specifically for 4-inch square trailer jacks. Built to handle heavy loads with ease, this gearbox allows for smoother, more controlled lifting and lowering—ideal for utility, dump, and equipment trailers.

✔️ Fits 4″ square trailer jacks
✔️ Heavy-duty steel construction
✔️ Quick-install, removable design for ease of maintenance
✔️ Clearly marked “Heavy Load” and “Light Load” drive inputs
✔️ Local pickup and delivery available in the St. George area

Avoid over-torquing—do not use with impact or hammer drills. Need help determining compatibility? Our experienced team is ready to assist.

📞 Call Dixie Trailer Parts today to check availability and get expert support.
Not sold online — Call to order.