Trying to upgrade to a tow bar on my flip over shanty and tow hitch on my sled. Have a 1988 Yamaha xl with the old style round aluminum bumper with plastic cover over it. Ordered the universal bumper hitch from heeters but the pipe from the bumper is too thick. Going to see what others are doing with that style bumper. I know they were common on SRV's, xl's and several more. Any help is appreciated.