Drive was to the rear wheels through a 3-speed synchromesh gearbox. The gearbox had five ratios with synchromesh on all gears. The gearbox was a new 5-speed unit with Porsche-type synchromesh. A modern synchromesh gearbox accomplishes this synchronization more efficiently. A new 4-speed manual transmission was also an option (a Dagenham without 1st gear synchromesh). The following gearbox versions UG-2 and UG-3 were made as synchromesh versions only. Standard was the V8 with a synchromesh manual transmission. Furthermore, a fifth gear and Porsche synchromesh were added to the transmission. Full-four synchromesh gearing was eventually introduced during 1968. The same year saw the introduction of the synchromesh transmission. The introduction of a synchromesh on reverse gear was another improvement. Its synchromesh "worked like a charm". All One-Fifties in 1953 used a 3-speed Synchromesh manual transmission. The first usage of synchromesh was by Cadillac in 1928.