American Motors Corporation (AMC) was an American automobile company formed by the 1954 merger of Nash-Kelvinator Corporation and Hudson Motor Car Company. At the time, it was the largest corporate merger in U.S. history.]citation needed[
George W. Mason was the architect of the merger to reap benefits from the strengths of the two firms to battle the much larger "Big Three" automakers (General Motors, Ford, and Chrysler). Within a year George W. Romney took over, reorganizing the company and focusing AMC's future on a new small car line. By the end of 1957 the original Nash and Hudson brands were completely phased out. The company struggled at first, but Rambler sales took off. A Rambler won the 1959 Mobil Economy Run and by 1960, was the third most popular Brand of Automobile in the USA, behind Ford and Chevy. After two model years, 1963 and 1964 of only producing compact cars, AMC focused back to larger and more profitable car like the Ambassador line from the perceived negative of the Rambler's economy car image. In the face of deteriorating financial and market positions, Roy D. Chapin, Jr., took charge to revitalize the company, and designer Richard A. Teague economized by developing several vehicles from common stampings. While prices and costs were cut, new and more sporty automobiles were introduced, and from 1968 AMC became known for the Javelin and AMX muscle cars.
An off-road vehicle is considered to be any type of vehicle which is capable of driving on and off paved or gravel surface. It is generally characterized by having large tires with deep, open treads, a flexible suspension, or even caterpillar tracks.]citation needed[ Other vehicles that do not travel public streets or highways are generally termed off-highway vehicles, including tractors, forklifts, cranes, backhoes, bulldozers, and golf carts.]citation needed[
Off-road vehicles have an enthusiastic following because of their many uses and versatility. Several types of motorsports involve racing off-road vehicles. The three largest "4-wheel vehicle" off-road types of competitions are Rally, Desert Racing, and Rockcrawling.]citation needed[ The three largest types of All Terrain Vehicle (ATV) / Motorcycle competitions are Motocross, Enduro, and also Desert Racing like Dakar Rallye and Baja 1000.]citation needed[ The most common use of these vehicles is for sight seeing in areas distant from pavement. The use of higher clearance and higher traction vehicles enables access on trails and forest roads that have rough and low traction surfaces.
A drive shaft, driveshaft, driving shaft, propeller shaft (prop shaft), or Cardan shaft is a mechanical component for transmitting torque and rotation, usually used to connect other components of a drive train that cannot be connected directly because of distance or the need to allow for relative movement between them.
Drive shafts are carriers of torque: they are subject to torsion and shear stress, equivalent to the difference between the input torque and the load. They must therefore be strong enough to bear the stress, whilst avoiding too much additional weight as that would in turn increase their inertia.
Jeep's SJ platform was part of the "FSJ" or full-size Jeep lineup. According to the International Full Size Jeep Association, an "FSJ" is any vehicle produced in North America, carrying the "Jeep" nameplate, with 2 or 4 doors, in rear- or four-wheel drive, whose wheelbase does not exceed 132 in (3,353 mm), nor is less than 109 in (2,769 mm), and whose tread width is no more than 67 in (1,702 mm) nor less than 57 in (1,448 mm). This definition is known to include the following models:
Four-wheel drive, All-wheel drive, AWD, 4WD, or 4×4 ("four by four") is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine.
In abbreviations such as 4×4, the first figure is normally the total wheels (more precisely, axle ends, which may have multiple wheels), and the second, the number that are powered. Syntactically, 4×2 means a four-wheel vehicle that transmits engine power to only two axle-ends: the front two in front-wheel drive or the rear two in rear-wheel drive.