The class II hitch on my '94 jimmy has some rust on the frame of the hitch. The underside of the frame is the worst and when i poked it with a screwdriver some metal flaked off. There still seems to be lots of solid metal there though. Should it be alright to tow like that? My 14' aluminum boat and trailer weighs less than 1000 pounds. It is a u-haul hitch and they advertise a lifetime replacement policy, and i will go to them,but i want to go fishing this week and i won;t have a chance to het to u-haul.