Rack'em Double Barrel Tailgate Assist RA-27C on Custom folding tailgate
bi folding ramp tailgate on General Transporter Trailer
Bi Fold Ramp - Rugged Aluminum Utility Trailer
Fold in Gate - PJ Trailers
Refuge Rock Trailers - Tail Gate
PJ Trailers - Double Hinge Flip Over Ramps
Trailer ramp door hinge
How to Build a DIY Trailer Ramp for under $50 bucks
Folding trailer ramp and tailgate
DIY Trailer door gap cover transition flap
Another DIY Trailer loading ramp, only better.
Cheap trailer ramp spring assist.
Building a Ramp Gate From Scratch - Part 1
DIY trailer gate assist: Please finish the job!
Fabrication of a trailer tailgate latch system
Trailer gate lift assist DIY build. $33 spent.
Trailer Ramp Hinge Modification
Adding Trailer Ramp Springs
HOMEMADE HINGES - WELDING
Building My Trailer Swing Out Ramp pt2