Jeep CJ

The Willys CJ (later Jeep CJ) (or Civilian Jeep) is a public version of the famous Willys Military Jeep from World War II.
The first CJ prototype (the Willys CJ-2) was introduced in 1944 by Willys, and the same basic vehicle stayed in production through seven variants and three corporate parents until 1986.
A variant of the CJ is still in production today under license. The last CJs, the CJ-7 and CJ-8, were replaced in 1987 by the Jeep Wrangler.
Also available were two-wheel-drive variants, known as DJs.

CJ-1

Willys-Overland CJ-1

Production	1944

By 1944, the Allies were confident the war would be won. This allowed Willys to consider designing a Jeep for the post-war civilian market. Documentation is hard to come by, but it seems that a Willys-Overland CJ-1 (for "Civilian Jeep-1") was running by May of that year. The CJ-1 was apparently an MB that had been modified by adding a tailgate, drawbar, and a civilian-style canvas top. None of the CJ-1s built have survived, and it is not known (at this writing) how many were built.^[2]

CJ-2

Willys-Overland CJ-2

Production	1944-1945

Although it bore the CJ name, the Willys-Overland CJ-2 was not really available at retail. The CJ-2s, also known as "AgriJeeps," were the second generation prototype for the first production civilian Jeep, and were used solely for testing purposes. It was directly based on the military Willys MB, using the same Willys Go Devil engine, but stripped of all military features, particularly the blackout lighting. They had tailgates, Power Take-offs ("PTO"s), engine governors, column-shift T90 manual transmissions, 5.38 gears, 2.43:1 low-range transfer cases, and driver's-side tool indentations. The earlier models had brass plaques on the bonnet and windscreen that read "JEEP". Later models were stamped "JEEP" a la the familiar "WILLYS" stamping that appeared on the CJ-2A and later models. Some CJ-2s had "AgriJeep" plaques affixed to the dash. The spare tire was mounted forward of the passenger-side rear wheel on the earlier models and aft of the rear wheel on later ones. It seems that CJ-2s were distributed to "agricultural stations" for evaluation purposes. Of the 45 CJ-2s built, serial numbers CJ2-06, CJ2-09, CJ2-11, CJ2-12, CJ2-14, CJ2-26, CJ2-32, CJ2-37 and CJ2-39 have survived. Only CJ2-09 has been restored.

CJ-7

The Jeep CJ-7 featured a longer wheelbase than the CJ-5 and lacked the noticeable curvature of the doors previously seen on the CJ-5. The other main difference to the CJ-5 was to the chassis which hitherto consisted of two parallel longitudinal main c-section rails. To help improve vehicle handling and stability the rear section of the chassis stepped out to allow the road springs and dampers to be mounted closer to the outside of the body. It was introduced in 1976 and 379,299 were built during 11 years of production.
The CJ-7 featured an optional new automatic all-wheel drive system called Quadra-Trac, as well as a part-time two speed transfer case; an automatic transmission was also an option. Other features included an optional molded hardtop, and steel doors. The CJ-7 was also available in Renegade and an upgraded Laredo model. Noticeable by their different body decals, the Laredo model featured nicer seats, steering wheel tilt, and a chrome package that included the bumpers, front grill, and mirrors. An optional Trak-Lok differential was available for the rear. Rear axle ratio typically 3.54, but later went up to 2.73.
The reports of the CJ7 were different in each type of engine: the 2.4 liter diesel was mated to the short 4.10 axle (in both Renegade and Laredo), while the 4.2 and 2.5 straight sixes used 3.73 and AMC V8 304-powered models (produced 1976-1981, which became part of the Golden Eagle version) used 3.55.
From 1976 to 1980 was mounted a Dana 20 transfer case, Dana 30 front axle (27- or 31-spline), and an 29-spline AMC 20 rear axle, while in recent years, Laredo package added tachometer, chrome bumpers, hooks^{[clarification needed]} and interior, comfortable leather seats, and clock. In 1980, the Laredo was first fitted with a Dana 44 rearend and Dana 300; the 300 is still in production and highly sought after by lovers of off-road.
During its 11 years, the CJ-7 had various equipment packages:

• Renegade 1976-1986 (2.4D L6-2.5-4.2-5.0 V8)
• Golden Eagle 1976-1979 (5.0 V8)
• Laredo 1982-1986 (2.4D-4.2 l6)
• Jamboree Edition (Limited Edition 2500 models which were built for the 30th anniversary 2.5 and 4.2)

A diesel-powered version was made in the Ohio factory for export only. The engines were provided by General Motors, the owners of Isuzu Motor Cars. Production of this diesel version is believed to have been only between 1980 and 1982. This model had the Isuzu C240 engine, T176 transmission, Dana 300 transfer case although there are reports of some being produced with the Dana 20. Typically they had 4.1 ratio, narrow track axles.
The CJ-7 continues to be used in the sport of mud racing, with either the stock body or a fiberglass replica. It is also a favorite for rock crawling.
Engines

• 150 cu in (2.5 L) AMC I4
• 151 cu in (2.5 L) GM Iron Duke I4
• 232 cu in (3.8 L) AMC I6
• 258 cu in (4.2 L) AMC I6 99.4 PS (73 kW; 98 hp), 261 N·m (193 lb·ft)
• 304 cu in (5.0 L) AMC V8 127 PS (93 kW; 125 hp), 296 N·m (218 lb·ft)^[21]
• 145 cu in (2.4 L) Isuzu Diesel C240

Transmissions

• Warner T-18 (4 speed)
• Borg-Warner T-4 (4 speed)
• Borg-Warner T-5 (5 speed)
• Tremec T-150 (3 speed manual)
• Tremec T-176 (4 speed manual)
• Borg-Warner SR-4 (4 speed)
• GM TH-400 (3 speed automatic)
• Chrysler TF-999 (3 speed automatic transmission - 4.2L)
• Chrysler TF-904 (3 speed automatic transmission - 2.5L)

Transfer Cases

• Dana 20 (1976–79)
• Dana 300 (1980–86)
• Borg-Warner QuadraTrac #1339 (1976–1979)

Axles

• Dana 30 Front (1976–86)
• 2-Piece AMC 20 Rear (1976–86)
• Dana 44 Rear (1986)

  CJ-8 (Scrambler)

  The Jeep CJ-8 was a long wheel-base version of the CJ-7, introduced in 1981. It featured a 103-inch (2,616 mm) wheelbase and a removable half-cab, creating a small pick-up style box instead of utilizing a separate pickup bed. Only 27,792 were built in the five years of production before being replaced by the similarly sized Comanche.
  CJ-8s used the traditional transfer case and manual front-locking hubs to engage the four-wheel drive. Most had a four- or five-speed manual transmission, but a three-speed automatic transmission was an option.
  Many CJ-8's were equipped with the "Scrambler" appearance package which included tape graphics and special wheels.
  A full length steel hardtop CJ-8 was made for the Alaskan Postal Service, using right hand drive and automatic transmissions. Instead of the rear tailgate, the steel hardtop utilized a hinged barn door opening to the back. There were only 230 produced and sold in the U.S. It was also widely sold in Venezuela and Australia as the CJ8 Overlander, with small differences including full length rear windows on the Overlander.^[22] Steel hardtops used on these postal Scramblers and Overlanders were known as "World Cab" tops.
  

  CJ-10

  Jeep CJ-10

  Production	1981-1985
  Body style	2-door pickup truck
  Engine	Nissan SD33 3.3L V6 Diesel

  The Jeep CJ-10 was a CJ-based pickup truck. Produced from 1981 through 1985, it was sold mainly as an export vehicle, though some were used by the United States Air Force for use as an aircraft pulling vehicle (see CJ-10a). They featured square headlights mounted in the fenders and a 9-slot grille, a homage to the old Jeeps of WWII which originally had a 9 slot grille (the civilian model, the CJ-2 and 2a, were given a 7 slot grille as a distinction between the military and civilian models). These were equipped with Nissan diesel motors, and were limited to 45 mph. This limitation in speed was due because of the high gear ratio in the rear differential. These were also solely 2wd models.
  Image link
  

  CJ-10a

  Jeep CJ-10a

  Production	1984-1986
  Body style	2-door flightline aircraft tug
  Engine	Nissan SD33 3.3L V6 Diesel

  The Jeep CJ-10a was a CJ10-based flightline aircraft tug. Produced in Mexico from 1984 through 1986, were used by the United States Air Force for use as an aircraft pulling vehicle. About 2300 of them were produced. Image link