We now sell replacement clutch discs for your Datsiun five-speed converted Spridget! The Datsun transmission has been a popular upgrade for many years among Spridget owners looking for a little more drivability at highway speeds. My personal Bugeye Gumby has one installed, and I love it! This clutch disc is a direct replacement for 1275-equipped Bugeyes using a Datsun transmission conversion kit. disc is approximately 6.5″ in diameter (the same diameter as a Bugeye clutch plate) and is splined to match the Datsun transmission.