This 5 speed close ratio gear kit from Quaife features straight cut gears with synchromesh engagement and is designed to fit the F18 and F20 series of gearboxes found in many Vauxhall and Opel cars. The kit includes a crown wheel and pinion which can be fitted to a standard diff or to the Quaife ATB diff, with a choice of final drive ratios. There is also a choice of 3 different 5th gear ratios.Quaife ATB differentials are also available to buy separately table.tableizer-table { border: 1px solid #CCC; font-family: Arial, Helvetica, sans-serif font-size: 12px;} .tableizer-table td { padding: 4px; margin: 3px; border: 1px solid #ccc;}.tableizer-table th { background-color: #104E8B; color: #FFF; font-weight: bold;} Ratios     1st2nd3rd4th5th 2.5401.7601.4201.190See Options