If you want to make sure that you don't have a problem then put the pin in and get a small hose clamp and put it on the side where the 45 degree angle is. After the hose clamp is installed the pin will not move. Did this to mine and where the 45 degree angle is will also stop the angle eating away at the receiver hole.
2011 jayco 33rlds, 2002 Ford excursion, v-10, 3:73 gears 4x4 mine. 2008 Suzuki sx-4, hers. Retired Air Force, now Retired.