Bert Transmission L.H. Side Bell Kit Complete CTD-201 - Available in aluminum or recently perfected lightweight magnesium, the CTD quick change side bells are rapidly becoming the state-of-the-art in rear drive technology. No longer does a damaged tube mean loading the car. In literally a few minutes, without heat, drilled or a press. A new tube can be installed without even draining the oil! Even the birdcages are pre-located featuring the six rib design for ring gear stability. These side bells are simply the only way to go! No need to remove the side bells. No need to press the old tube. Out of the side bell. No need to heat bell or tube. No drilling or tapping required. No need to retime birdcage. Just loosen CTD’s patented taper lock and remove the safety pin. Reinstall the new tube, taper lock and safety pin and you are done! The setting of birdcage is a new change. Kit included: Main bell, taper lock, safety lock pin, fastener.