Ok, put up or shut up time
. I see a lot of "my receiver is oversized" but no data. I just accurately (±.005") measured 3 vehicles with Class III receivers and 3 different hitches that I own using calipers. Here's the data:
2011 Explorer XLT: Receiver hole horizontal is 2.080", vertical is 2.100"
1997 Expedition: Receiver hole horizontal 2.090", vertical is 2.095"
1989 F-150: Receiver hole horizontal is 2.030", vertical is 2.080"
Hitch #1 (Reese 6" drop). Horizontal is 2.005", vertical is 2.020"
Hitch #2 (Reese multi ball). Horizontal is 1.990", vertical is 1.980"
Hitch #3 (Performance Bike Carrier). Horizontal is 2.020", vertical is 2.020"
As you can see, they're all different, but in the same ballpark. Almost no difference between the Expedition and the Explorer (paint thickness could explain that), and the F-150 is slightly smaller, but it was more rusted than the Expedition and Explorer.
As I said above, there will be more noise from this vehicle from previous Explorers, Durango's, pickups etc. because the hitch is directly connected to the body, not isolated through frame bushings. I would also expect to hear this kind of noise from
ANY vehicle that is a unibody.
On edit..I just measured another Expedition with a hitch that has never been used (nice to have good neighbors
) That receiver hole is 2.060" x 2.065"