1970 In early 1970, AMC acquired Kaiser Jeep Corporation and began refining and upgrading the range. American Motors improved manufacturing efficiency and lowered costs by incorporating shared components such as engines. Reducing
noise, vibration, and harshness improved the Wagoneer driving experience. Visually, a big change was made during the 1970 model year by replacing the metal grille with a new plastic grille having an egg crate pattern instead of vertical bars. After 1971, the outsourced Buick 350 was replaced by the
AMC V8, with the later becoming available.
1972–1977 The innovative
Quadra-Trac full-time four-wheel-drive system, which broadened the appeal of Jeep products to people who wanted four-wheel-drive traction without the inconvenience of a manual-shift
transfer case and manual
locking hubs, was introduced in 1973. In 1974, AMC redesigned the
greenhouse of the defunct two-door Wagoneer, with much wider
D-pillars and single, long rear side windows, and reintroduced it as the
Cherokee. This replaced the
Jeepster Commando, whose sales had not met expectations despite an extensive 1972 revamp. The Cherokee appealed to a younger market than the Wagoneer, which was regarded as a family SUV. Also in 1974, front disc brakes were introduced as standard equipment. While the new Cherokees still had 4-wheel drum brakes standard, front discs could be had as an option. the Limited's high-level specification attracted buyers, and sales were strong with a total of 28,871 Wagoneers produced in 1978, and 27,437 in 1979.
1979 On other SJ models, there were few styling changes until 1979, when all Wagoneer, Cherokee, and J-Series pickup models received a substantial styling update with one-piece aluminum bumpers and a new one-piece chrome plastic grille with a protruding middle section shaped somewhat like a pig's nose, horizontal slats, and square headlights.
1980 For the 1980 model year, AMC decided to offer the four-wheel-drive platform using a station wagon body style but on a compact platform, and introduced the
AMC Eagle. With the V8s the primary choice among Wagoneer buyers, the six-cylinder engine was dropped in the 1970s, only to return as an option when Jeep sales – particularly of the high-volume Cherokee – were hit by the
1979 energy crisis. The Wagoneer continued to sell relatively well in comparison to luxurious station wagons offered by Ford, Chrysler, and GM, while production dropped to 10,481 in 1980, but increased to 13,741 in 1981, 18,709 in 1982, and 18,478 in 1983. When reintroduced, the engine came with a
manual transmission as standard equipment, but in 1983, automatic transmissions with
“Selec-Trac” four-wheel drive became standard. With this combination, the Wagoneer achieved
EPA fuel-consumption estimates of city and highway – outstanding for a full-size SUV. This allowed the company to advertise good fuel mileage, although the more powerful 360 V8 remained popular with certain buyers despite its greater thirst for fuel.
1981–1982 In 1981, the Wagoneer line was expanded to three models. The Custom Wagoneer was the basic model, yet it included a four-speed transmission, free-wheeling hubs, power steering, and power front disc brakes, as well as passenger area carpeting. A new Brougham model added an upgraded interior trim that included woodgrain for the instrument cluster and horn cover, floor mats, power tailgate window, as well as the "convenience" and "light" packages. The Brougham's exterior included a thin side body scuff molding with a narrow woodgrain insert, a roof rack, as well as bright door and quarter window frames, and a lower tailgate molding. The Wagoneer Limited was the top-of-the-line with standard Quadra-Trac, automatic transmission, air conditioning, tinted glass, power windows and door locks, cruise control, AM/FM stereo radio, extra-quiet insulation, power six-way driver and passenger bucket seats with center armrest, upgraded door panels, leather-wrapped steering wheel, extra-thick carpeting, and a retractable cargo cover.
1983 The basic "Custom" model was dropped starting with the 1983 model year, and a new
Selec-Trac system became standard equipment. A dash-mounted control allowed the driver to change between two-wheel drive and four-wheel drive. The switch activated a vacuum-activated spline clutch that was built into the transfer case, which engaged the front axle assembly. A shift lever mounted on the side of the transmission hump allowed the driver to shift between four-high and four-low while the vehicle was moving, although the transmission had to be shifted to neutral and the vehicle had to be moving at less than five miles per hour to accomplish this.
1984: SJ and XJ For 1984, AMC replaced the SJ-body Cherokee with the all-new, compact, and more fuel-efficient
unibody Jeep Cherokee (XJ), and introduced an upscale version of the (XJ) known as the Wagoneer. The compact XJ Wagoneer was available in two trim levels: the "Wagoneer" and the "Wagoneer Limited." AMC originally intended for these vehicles to replace the SJ-body Wagoneer models, but high demand prompted the company to keep the old SJ-body Wagoneer in production alongside them even though the design, largely unchanged since 1962, was becoming increasingly antiquated. The SJ-body Wagoneer line saw consolidation in 1984 with the end of the "Brougham" model, while the "Limited" was renamed the "Grand Wagoneer" to free up the "Wagoneer Limited" nameplate for the compact XJ Wagoneer. In mid-1984, AMC introduced a less expensive version called the Wagoneer "Custom", without the
simulated woodgrain exterior. The Custom had steel wheels with hubcaps, standard equipment was pared down, and it had part-time four-wheel drive. Despite its lower price (US$15,995, about $3,000 less than the "Grand"), sales were low, and it was dropped after 1984. Thus, at the end of 1984, production reached 20,019 with just one fully equipped version available. The Grand Wagoneer remained "the gold standard of the SUV market", and from 1985, it would continue in one version using the old SJ-body until the end of the Grand Wagoneer production under Chrysler. For the Mexican market, the Grand Wagoneer was built and distributed by
Vehiculos Automotores Mexicanos, and was offered with the 282 CI engine.
1985 An improved handling package was introduced in 1985 that incorporated a revised front sway bar, gas-filled shock absorbers, and lower-friction rear springs. A total of 17,814 Grand Wagoneers were built in 1985.
1986 Starting in the 1986 model year, the Grand Wagoneer received a new four-part front grille and a stand-up hood ornament. An updated audio system became a standard feature, and a power sunroof installed by American Sunroof Corporation became a factory option. However, the most significant change was the installation of a fully revamped interior, including a new dash pad, new instrumentation, new door panel design, shorter nap cut-pile carpeting, new leather, and corduroy seat cover designs, as well as front seats that now featured adjustable headrests. Changes were made to the instrument panel that now featured square gauges and contained an improved climate control system. The metal glove box door was also replaced with a plastic door featuring a woodgrain overlay. A new two-spoke steering wheel also included new stalks for the lights and wipers, and washer controls on the column. The Selec-Trac driveline gained a new Trac-Lok limited-slip differential to send power to the wheel with the best traction. There were 17,254 Grand Wagoneers built in 1986.
1987 The last model year developed under AMC, 1987, was also the 25th anniversary of the Wagoneer design. Standard equipment included the V8 engine and self-sealing Michelin "Tru Seal" P235/75R 15 radial tires. The sound system included a new AM/FM electronically-tuned stereo with a Dolby cassette player and four Jensen speakers. The exterior featured revised woodgrained sides in "marine teak" with new nameplates and V8 badges. On the inside were new tan or cordovan trims that replaced the honey and garnet colors, while the interior assist pulls on the door panels were removed. A combined 14,265 units were built by AMC and Chrysler in 1987. Standard equipment for late Grand Wagoneers included: • 15″ Michelin all-season whitewall radial tires • 15″ alloy wheels • AM/FM stereo with cassette player • Four AccuSound by Jensen premium speakers • Air conditioning and heater with manual controls • Dual front power bucket seats • Leather-wrapped two-spoke steering wheel • Leather and velour seating surfaces • Digital quartz dashboard clock • Full-size glove box • Roof rack with roof rails • Chrome front grille with a hood ornament • Front fog driving lamps • Power windows and power door locks • Adjustable tilt steering column • Dual-note high-low-pitch horn • Power rear hatch window • Rear window defroster • Tinted windows • Faux wood body side vinyl wood appliques • Cargo cover • Overhead console with compass and thermometer (1989–1991) •
Keyless entry (1989–1991) • Rear window wiper/washer (1989–1991) Optional equipment included: • Towing package • Power sunroof/moonroof ==Chrysler years==