The entrance transaxle has three gears, two forward, and reverse. The 2 ahead gears from the front transmission match the lower 4 forward gears with the rear transmission. It's not necessarily used in increased gears. The connection amongst this gearbox and each front wheel is by using unbiased Haldex-style clutches, https://4465148.blogolize.com/an-unbiased-view-of-4x4-75267683