The existing lift point is probably too far from the pivot on the rear axle tab. If you know the range of movement of the existing lift you could calculate the lift at the blade once you know where the pivot will be in relation to the lift point. How does the factory Ford blade attach and lift the blade. I'd have a look at that and see if it's doable. Then you know it's strong enough and will lift a decent distance. 3-4" is not enough. I think the JD's lift about 10" and will float down below grade a few inches as well. That reminds me that you will need to consider a range of movement for the float if you want that feature. The JD's mount the blade on the front so the distance from lift point to the pivot point is always short.
I think the only way to get 10" of lift on the blade, I will have to keep from going under the front axle with any part of it. I will be getting another blade before long. It looks to be one for a GT18, but unsure until I get it. But it has the lift they use and maybe I can use that as a basis for this heavy thing.
Speaking of weight, I put the measurements of the blade in a calculator online and just the blade itself is around 70 lbs. Might get out the scales today and see what the whole thing adds up to. The blade is 1/4" steel plate (bent into the curve), 21" tall and 48" wide. Monster!
I will see about some pics of it all today!
Another thought I had! Cut about 6"~ off the top to make a belly blade out of.
Edited by KennyP, February 11, 2013 - 07:28 AM.