[coolhandcountry]

I have seen some get a adapter made to fit the 51 tooth ofna gear on it.
With a small pinion you don't need to big of spur. 46 tooth spur with 9 tooth pinion. 5.11 ratio With the 3.31 gives you a final drive of 16.91 You could try a diff change in front and back to the 4.3 diffs.