How to Transform The Fiat Panda 4x4 - Installing A Mechanical Coupler

In this video, I will be fitting my latest upgrade! This is a mechanical coupling unit, which will be replacing the viscous coupler mounted to my rear differential. The idea is, on road I can put the car into 2WD, and then when the going gets tough, I can switch it into 4WD, which is a mechanical direct link from the front differential to the rear. This is essentially activating a central locking differential. Better economy on road, and better grip off road! installation time was 3.5 Hours.