It may annoy the purists, but that's not what this is about for me at all.
Why a TrueTrac? An Eaton style posi is a bit cheaper will withstand more than the 26 spline axles will. Quick's Performance, the vendor in your Amazon link above, sells the same kit with a clutch style posi for $500.
My math says your tire is 28" tall. So that says 3.73 is the rear gear needed if you don't plan long trips at greater than 65 mph/105 kph.
What's the speed limit there and how long can you travel at highway speeds?
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