1991 Seafarer on a bracket has 22' cables, just replaced them in the fall. I tried pulling the new ones through with the old ones, but it didn't work out well. The rigging tubes are pretty well done, so if you pull out the old ones completely the new cables should feed right through. I didn't love the turns and bends in the dash, but I followed how the factory ones were and it works fine, they just seemed tight at first.