I want to replace the cable on my winch with a winch strap as the cable is starting to frey a little. I looked at a strap theat says "capacity 5,000lbs." and then "working load 1,500lbs." I have a 1986 21 foot 4winns bow rider with a Mercruiser 170 horse I/O. Is this strap enough or should I find a heavier one? Any help would be appreciated.