Need to replace the roller on my trailer. I see BassCat has one you can buy. Is the roller used on the trailer specific to BassCat trailers and thus I should order it or can I buy a generic roller locally that is the same?Also (and please excuse me while I flash my ignorance), but I assume the easiest way to replace it is to launch boat, remove bolt, take off old roller, put on new roller, tighten bolt, go fishing and then go home. Correct?Thanks in advance!!