Wouldn't just not installing the top link work for you, MrWinkey? A lot of people mow that way. It works well and is a whole easier than making the top link float and cost nothing to do. The only disadvantage is that you can't lift the rear wheel of the mower off the ground for long transports. Also, there are mowers such as the Woods BB60x, and others, that have a floating mechanism built into the mower that an be adjusted so you can still lift it completely off the ground if needed. (WAY off the ground if you have an hydraulic top link) I have one of those self floating Woods mowers and I also have a floating hydraulic top link. I never use the floating top link feature as it doesn't float nearly as well as does the floating mechanism that is built into the mower.