The Gladiator name was dropped after 1972, after which the line was known simply as the Jeep pickup or J-series. The pickups were designated as J2000 and J4000 models (the 3000 series was dropped in 1971) until 1973, then as J10 and J20 models from 1974 to 1988. From 1971 to 1972 Jeep pickups offered the AMC V8 as an optional engine. The AMC I6 engine was introduced in 1972 and offered through 1988. The engine produced and of torque. The
AMC 360 cu in (5.9L) was offered in 1971 and through 1988. Producing in early versions and of torque. Later 360s produced and of torque. Throughout 1971-1972, the J10 received updates to its front-end design, which "modernized" the vehicle. The model designations were simplified for 1974, with the J-2000 and the J-4000, which designate wheelbase, being swapped out for the J-10 and J-20, designating payload capacity. Larger brakes were made standard, and the turning radius was reduced. The Quadra-Trac system was now available with all engines. The engine was optional, as well as full-time
Quadra-Trac and both automatic and manual transmissions. 1983 saw the new full-time four-wheel drive system, Selec-Trac, replace Quadra-Trac. From 1981 to 1985, a re-bodied version of the J-10 was built and sold as the
Jeep CJ-10, featuring a CJ-like nose and cab, as well as a very boxy redesigned rear truck-bed, somewhat resembling that of a Land-Rover.
Chrysler bought out AMC in 1987. The full-size Jeep Pickup line was not only an aging model, but also competed directly with the broader range of
Dodge trucks. Chrysler discontinued the full-size Jeep trucks, but continued to build the luxurious and highly profitable
Grand Wagoneer, which shared the chassis with the large pickups. ==Military versions==