CURT 45521 Class 2 Trailer Hitch Ball Mount, Fits 1 1 4 Inch Receiver, 3,500 lbs. GTW, 3 4 Inch Ball Hole, 3 1 4 Inch Drop, 2 5 8 Inch Rise oem Provides a solid mount for Hub Face Length (Inches):89 Provides a solid mount for the Q25 5th wheel hitch head #16565 Easily mounts into industry standard 5th wheel base rails Protected by a highly durable carbide powder coat finish The brackets fit on a variety of trucks and create a solid attachment point for your 5th wheel hitch easy and reliable for your light duty or standard duty towing needs we coat each one in a highly durable black powder coat that provides a long lasting defense against rust