I am saying don"t use silicone. I redid my seals a while back on my TO20 and I used the correct paper gaskets. It had been siliconed by a previous owner and I put it back like it is supposed to be and I have no leaks. John(UK) knows these tractors inside and out and he will tell you not to use silicone. I agree with him. You have to torque those bolts. How do you torque something covered in silicone? It"s kind of hard to because the silicone will keep compressing, and because it keeps compressing and giving, eventually your bolts will loosen. My were in my tractor when I went to take them loose. My advise is this...if your axle bearings are good, I would pack the bearing full of grease,install sure seals, put it back together with the paper gaskets and torque it down and check the clearances just to be safe. When the axle bearings go bad then you can cut the collar off and replace the original outer seal. But what are the odds that your shaft is perfect where the original seal has ridden for the past 60 years. You may replace the outer seals only to find that it still leaks and you have to take it back apart to put sure seals in to stop it from leaking.
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