Y61 models first appeared in December 1997, available in 4.5 and 4.8 litre petrol, 2.8, 3.0 and 4.2-litre turbo diesel and 4.2-litre turbo diesel intercooler variants. The alternative model codes of GR and GU were applied to left and right hand drive models, respectively.
The drive train was changed in this model, including larger CVs and less syncros in the manual gearboxes. The differential housings were widened to fall inline with the new body shape, but centers remained the same (H233 and H260). Some petrol wagons received a coil version of the H260 differential.
Comfort levels were increased over GQ, especially in the seating and NVH areas.
The badges for this series patrol are in order: DX, DX5, DX Plus, ST, ST Plus and Ti.