I purchased a galvanized trailer in 2002 for my boat and am impressed with the product. Shortly after purchasing the trailer I took a trip to the desert where the temperature was well above 100 degrees. The bearing grease expanded and slung all over the wheel. I stopped at a trailer repair and was advised that there was nothing found to be wrong. I was unhappy that I had to pay out for an inspection on a new trailer so I submitted the bill to Zieman. Zieman refunded me the expense of the inspection even though there was no fault with the trailer. I now understand that extreme heat can cause the grease to spit out. For customer satisfaction I was reimbursed the expense even though Zieman was not at fault. I am a loyal customer to this corporation.