I have been told the ford is a strong rear end, but it also takes some extra horse power to turn. more so than a 8 3/4 or 8 1/4. has any body else heard this?
Yes, the pinion is further below the center line of the ring gear than in the 8 3/4 or 8 1/4. This requires the gear teeth to be at more of an angle which increases friction.