Thanks for the reply, That's interesting using it in the yard I live along a paved street on a hill where they spread a lot of gravel then plow that gravel into the yard the next snow, I have to rake every spring I really like the idea of the broom for that problem.
I have a sweepster from back in the 70's that come off a John Deere lawn tractor, I picked it up very reasonable but have never tried to fabricate a Grasshopper mount. Maybe I should sell it to a J.D. guy and buy a news one with the right mount.
If it were me, I'd trade the JD broom. Lots of JD owners around that would snap it right up. If you modify it to fit the GH, you've ruined its value. Best to sell it and exchange its value for a Sweepster with GH mount.