I just removed my tow "ball", and found a 4.7T rated bow shackle pin fits in the remaining tounge hole perfect ($15 Total)

And you only need keep the "towball" (and a spanner) in the car should you need to convert it back to a standard towball (instead of a complete tounge and ball)





The problem often overlooked, is with regard for the car you are recovering (or thats recovering you) , you may have a strong tow point, but if their "weaker" tow point breaks, its ALL coming YOUR way !

I keep a towball spanner and a spare 4.7T Bow shackle in my car, this way, i can easily convert anyones towbar into a safe recovery point in the same manner, should the situation arise.