07Major improvements to the original Discovery driveline were made for the new generation. The five-speed R380 gearbox was retained but uprated to suit the increased torque of the new engines. And it was modified to improve its somewhat dubious quality and reliability record. The automatic gearbox was the familiar ZF4HP22 but now had a new sophisticated electronic control system. A ‘mode’ button provided a ‘sport’ mode in high range and manual override in low range for more control, including an anti-stall downshift function. A direct electronic link to the engine initiated a momentary torque reduction during gearshifts to improve change quality.
Both units were coupled to the LT230Q transfer box – the ‘Q’ suffix meaning ‘Quiet’, brought about by improvements to refinement. It was isolated from the cabin by a cable instead of a linkage. With the advent of ETC, driver control of the centre diff was removed, though it could still be locked for workshop use.
The wider track axles benefited from improvements made for the P38; the front had open yokes to allow greater steering precision.
The Discovery 2 transmission was much improved over that of the original. The automatic gearbox now featured the ability to engage a sport setting in high range and manual override in low range for better off-road control.