Damaged in shipping, not etrailers fault
No inner packaging in the box to protect it so the end flanges got bent in shipping. Didn't appear Curt took into account an on-line retailer mostly ships to customers fedex and UPS. Factory hitch ID was 44-1/4", frame rails were 44-1/16". Once flanges were straightend, the hitch ID at the base of the flanges was 44". Maybe this was the way it was before it got damaged in shiping?? Bent the flanges slightly outward and used a floor jack to push the hitch into place.