TERRAFIRMA DEFENDER DOUBLE CARDAN FRONT PROPSHAFT FOR DEFENDER 90 110 130 FROM 07-16. THIS PROPSHAFT UNLIKE OTHERS IS A DIRECT REPLACEMENT AND DOES NOT REQUIRE A TRANSFER BOX FLANGE ADAPTOR. **Double cardan joints have two universal joints joined by an intermediate shaft, the joints are phased or synchronised with each other which overcomes the speeding up and slowing down of a single joint thus reducing vibration. It is a common misconception that fitting a wide angle propshaft will cure vibrations caused by raised suspension. The cause of the vibration is the angle of the shaft in relation to its end flanges, fitting a wide angle shaft does not change the angles. The vibration may seem reduced but this will be coincidental with a new heavier shaft in perfect condition.