I had to fashion a metal bar on my dump trailer to have a lip for the ramp lip to hook over but the ramps work great! Very light weight and durable. My equipment weighs 3300 plus a 400 lb attachment and I drive up and down these ramps without even flexing them. A couple minor welds on the cross ribbons let go after first use but it wasn’t severe enough to even need to fix and they still work great. Been about a month now using these ramps and have no complaints. Definitely would buy again.