The Eaton 9 speed is a good tranny. It should be a dual range, lo-hi, shift pattern. The series will determine what the shift pattern is. I have a 9 over in my truck and I like it. As for the swap, if both are 8.2's you should have everything you need to do the swap.
The tires are a different story. The 24.5 Dayton will not fit on a 20" Dayton hub. A 22.5 is a tubeless 20" and will interchange. A 24.5 is a tubeless 22" and will fit on a 22" hub. Without changing the hub the 24.5 will not work.
If you had Budd wheels they would interchange.
JD - Boss75
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