Looking for f106/fds75 info

why? a 40 spline spool is avalible for a 14 bolt. and i can get 14 bolts for 100 bucks each.

14 bolts are weaker then the d80. Mild gas trucks break them easily and swap out for d80's. There no such thing as a bullet proof 14 bolt or they would be swapping them into the rears of all these diesel trucks and getting rid of the 80's.

37 spline pinion vs 30 spline.
 
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