Our last TV (95 Burb) was a year round driver so I got in the habit of removing the receiver every winter.
Never even occured to me to check this before.
This started after seeing an sob's reciever bolts fail while backing into a campsite in Up-state NY. Really it was a simple operation, just six bolts on the Reese class 4. Every Spring re-install and inspect the grade 8 stainless bolts that I had used.
Pulled down the zip-lock bag filled with grease that I had tucked above the bumper last Fall. Guess what, no wiring corrosion to fix and the piece of mind knowing that the receiver was secure for another season.
CHECK THOSE RECEIVER BOLTS ONCE A YEAR, may be surprised what you find!!
"Sticks & stones can break your bones...and hail will dent your Airstream"
So when is this..."old enough to know better" supposed to kick in?