Poor Little Cone Style

Yep. Plenty of expansive force applied due to the gears trying to escape.

My cones were bottoming at the nose out on my B body, so one wheel spin, so I took the cones out and milled 1/8" off the noses and put a 1/8" shim on the backs. Worked fine for 5 years then the car was totaled due to the positraction locking up in a turn... just kidding a rich camaro kid ran into me and had to pay pay pay :)

Coronet 500 said

Hopefully to clarify, my 1970 factory manual says,

During torque application to the axle, the initial spring loading of the cones is supplemented by the gear seperating forces between the side gears and differential pinions which progressively increases the friction in the differential.

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