Rear differntial ratio will have an effect on your outcome.

Axle ratio (:1) 2.24 suited for a 400E, suggest big power output!

An axle ratio of (:1) 3.27 from a 260E would represent a lower power output.

Diesel plants in our 300 D and SDL, require 2.87, or 2.65 ratio, compaired to gassers higher ratio.

Does this give you any more perspective? I'm confused!