11-39, 3:54 to 1

That's the one that Brattons recomends 18 tooth . When I changed mine in the truck from 3.78 to 3.54 it had an 18 tooth one in it . So I am as confused as you are !!!

Have you managed to rebuild your old axle allready ? or did you put that hot rod one in there for now?
Did you replace the bearings , races and seals ? It must have been preety loose in there to knock a few teeth off !!
John Cochran
 
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