Durango Sc 4X4

[brushlessboy16]

Because so much power and torque from the 550 motors is being delivered to the Team Durango race-winning, shaft-driven, geared-diff drivetrain, our designers have created a slipper clutch which can be transformed into an oil-filled differential. Simply by removing the centre diff locker nut and adding diff gears (available separately), you can control how power is delivered to the drivetrain by fine-tuning the slipper clutch and centre diff.

I think its either or. not both.. at least by the wording of the statement about it