I broke a blade on my 1981 Sidewinder 60 inch mowing deck. The nut is 1 7/8 and probably hasn't been off since 1981. I found the 1 7/8 inch (3/4 inch drive) socket at Northern tool. I used a good Craftsman 1/2 drive ratchet with 2 inch extender and a 1/2 inch up to 3/4 inch drive adaptor and a...