Manual gearbox
Mini: A plus
5-speed A-plus type - fitted with a closer ratio gear set than the standard 4 speed gearbox by virtue of a redesigned laygear and first motion shaft which produce the following ratios-
• 1st gear 3.282
• 2nd gear 1.966
• 3rd gear 1.283
• 4th gear 1-1
• 5th gear is technically an overdrive gear and produces a reduction of .882 on the helical teeth gearbox with a new 3.444 final drive it gives a 5th gear ratio of 3.037
This five speed close ratio helical cut teeth A-plus Rod-change type gearbox is suitable for 1275-1380cc (except extra boosted turbos). The strength of the helical cut gearbox is dependent on the torque capability of the original 2nd/3rd gears plus the final drive pinion and new 5th gear(i.e. 80-85 ft lbs of torque).
The gear case has extensive modifications plus 58 new linkage and gear modification parts and has been in production since 1993 with phenomenal proven reliability.
Do not use a quick shift gear lever with this gearbox