Put a rear on a bench, put a "load cell" on the pinion. Measure bearing preload and subtract that from end result.

Put a 3 foot bar (length not really a factor), and a weight on end of bar fasten to axle. Measure effort from 6 to 11 O'clock at cell. Graph it.

Repeat for all rears.

Would you use a "9" if you found it to be within .05% of other rears? How about 1%? What if its within .005%?

I know 3 people personally that traveled long distances to race, only to loose a Dana in time trials. About then they probably would have given 5% up just to race.


Can we talk a magazine into doing this kind of test? I know this all off topic, but somewhat relative anyway.