I know this has been discussed before but I need input on replacing these POS Kenda tires Ranger chooses to put on our trailers. What have you all found to best replacement tire in the ST215/65/17 tire?? Mine go flat sitting in the garage. I pull my boat 2 miles to the water and they are like new but have an apparent slow leak in the 2 rear tires and I don't trust them at all. Thanks.