To obtain maximum strength and reduce overall size the outer differential casing is manufactured from cast iron. To reduce weight Mazda simplified the construction of the differential and have adopted an aluminium alloy rear cover.
To enhance the feeling of direct drive when starting from a standstill and accelerating Mazda has rigidly attached the differential to the transmission by means of a power plant frame, please see image below.
The LSD is better referred to as a Super-LSD because of its low torque bias ratio (2.0:1), utilising torque-sensing; this style of differential has been adopted to enhance all round performance and improved driving stability.
