Cren,
The bolts in my unit where 7/16". It is possible that they had been changed, but I doubt it. All looked pretty much factory. I'll pull up my sheets, and see what they say. I think they are in the shop. It may be that the JE has a larger diff than the JD. I have it all buttoned up, and full of new fluid, so I won't be looking at the bolts again...I hope.
I just finished shackling the frame back on the axles. I will do the wheels/brakes, and then start on the engine. I have a fresh '58 235 sort of spread all over the shop. After I get it together, I will have to worry my way by the transmission. Somewhere in there, it will go into the frame.
night