My 1960 Overlander has a factory spare tire mount welded onto the factory
reinforced bumper. Removal is not an option short of using heavy equipment!
If you keep the rest of the rear of the trailer lightly loaded you should be
OK. Of course this assumes that you havn't added other weighty items towards
the rear of the trailer. However, it is prudent to keep an eye on where the
frame exits the rear of the trailer. You are looking for any signs that the
gap between the shell and frame is widening. If this problem develops it is
not the end of the world.
Scott