Pre-drilled bolt holes: The first hole center is placed 4" inches from each end, then the remaining hole centers are 11" inches apart. The recessed holes are drilled for a 3/8" bolt (not supplied).
From the left side: bolt holes are centered at: 4", 15", 26", 37", 48", 59", 70", 81", 92"
OFC: An extra charge in addition to flat-rate shipping charges for shipping a LARGE, HEAVY OR LONG item by ground.
Trail Pals tip:
For accurate measurements, if the bumper is already removed from the trailer, lay the bumper on a flat surface & measure the flat back for the hole pattern.In reality, it's almost impossible to match the hole pattern, and you will probably have to drill new holes in your trailer.