[Dion Hildebrandt]

I was curious as to how other fellow racers have installed a heater in the differentials.
Of course an obvious option is on the exterior of the housing...but does the heat actually penetrate the thick iron of the center section?
Is putting the pad inside the center section a good option with all the moving parts inside?
or would a block heater type element be the way to go?

The differential for my application is a 12 bolt chevy with a LPW cover if that matters at all