here is a example …if you have basic tools ,drill and a hack saw or sawz-all you can do it yourself. measure your tognue and do a google search for one to fit your trailer.
FULTON SWING-AWAY TONGUE AND COUPLER KIT FOR 3″ X 4″ TONGUES
Fold-Away couplers provide space saving alternatives for easy storage. The patented cast hinge designs offer strength coupled with a sleek appearance.
Provides 34″ Additional Clearance for Trailer Storage.
5000 LB. Capacity.
Rust-resistant Z-Max 600 hour fin ish.
Chain Retainer Prevents Saftey Chains From Dragging Yet Allows Free Movement During Towing.
Pivot Restricted to 165 Degrees to Prevent Damage to Side Marker Lights.
Safety Chains, Assembly Instructions, and Assembly Jig Included. Individually Cartoned and Litho Labeled.
34″ Coupler Kit, Ball Size 2″, CLS-3, 3″ X 4″ Tongue, Bolt On.