First generation (4W60 series; 1951–1960)
In September 1951 the 4W60 was introduced. The overall styling was similar to the Willys Jeep. The 4W60 used the 75 hp 3.7L Nissan NAK engine from the Nissan 290 bus, but with part-time 4-wheel drive and a 4-speed manual transmission. The grille had a pressed-steel Nissan badge. A 4W70 Carrier-based wagon was available. The 4W60 was replaced with the 4W61 in August 1955.
Second generation (60 series; 1960–1980)
The soft-top Nissan Patrol 60 (two-door; 2,200 mm (86.6 in) wheelbase) and G60 (two-door; 2,500 mm (98.4 in) wheelbase) were first sold in Australia in 1960. Left-hand drive L60/GL60 models were sold outside of Australia. The 60 series gained attention as the first vehicle to drive across the Simpson Desert in Australia. US customers could not get Patrols until the mid-seventies
Jonga
In the 1960s, the Indian Army showed an interest in two vehicles from the Nissan stable, they were the Nissan Patrol P60 & the Nissan 4W73. The first production units were completed at Vehicle Factory Jabalpur (VFJ) around 1969. The name as per the Indian army records is Jonga, which is an acronym for Jabalpur Ordinance aNd Guncarriage Assembly
Third generation (1980-1987/-1994)160 Series (MQ / MK), 1980–1987
The 160 series was introduced in 1980 to replace the 60 series. In Australia, these are officially known as the MQ Patrol. In 1980, the engines available were the L28, P40 and SD33. All models were available with a four-speed manual transmission, albeit a three-speed automatic was optional on long wheelbase vehicles fitted with the L28 engine. All 160 series Patrols came with a two-speed offset transfer case, which featured a 1:1 high gear and a low gear.
I think you can all figure out what came next….the good OL GQ!