At the link ... John Deere 420 Garden Tractor - farm & garden - by owner - sale
I run a rear blade on mine now, but with six suitcase weights on the same hitch it's a constant looking rearward and hand on the lift lever to keep it from digging in or dumping snow when I use it. Having a center blade that I can just glance down at would be a big improvement.It was pretty easy once I got it figured out. I will have to post some pictures of how I did it some time. The 420 makes a great platform for the center blade.