Twin Traction Beam
Encyclopedia
The Twin Traction Beam (TTB) is an independent suspension
system for front drive axles in four-wheel drive
Ford F-Series
trucks and sport utility vehicles.
The Dana Corporation manufactured the TTB axle for Ford. It uses a universal joint
in the center that allows the wheels to move independently of each other. The differential
is offset to the driver's side, and a slip yoke is used on the long axle side to allow the shaft to change length. The TTB axles are variations of the Dana 28, Dana 35
, Dana 44
, and Dana 50
.
Independent suspension
Independent suspension is a broad term for any automobile suspension system that allows each wheel on the same axle to move vertically independently of each other. This is contrasted with a beam axle, live axle or deDion axle system in which the wheels are linked – movement on one side affects...
system for front drive axles in four-wheel drive
Four-wheel drive
Four-wheel drive, 4WD, or 4×4 is a four-wheeled vehicle with a drivetrain that allows all four wheels to receive torque from the engine simultaneously...
Ford F-Series
Ford F-Series
The F-Series is a series of full-size pickup trucks from Ford Motor Company which has been sold continuously for over six decades. The most popular variant of the F-Series is the F-150...
trucks and sport utility vehicles.
The Dana Corporation manufactured the TTB axle for Ford. It uses a universal joint
Universal joint
A universal joint, universal coupling, U joint, Cardan joint, Hardy-Spicer joint, or Hooke's joint is a joint or coupling in a rigid rod that allows the rod to 'bend' in any direction, and is commonly used in shafts that transmit rotary motion...
in the center that allows the wheels to move independently of each other. The differential
Differential (mechanics)
A differential is a device, usually, but not necessarily, employing gears, capable of transmitting torque and rotation through three shafts, almost always used in one of two ways: in one way, it receives one input and provides two outputs—this is found in most automobiles—and in the other way, it...
is offset to the driver's side, and a slip yoke is used on the long axle side to allow the shaft to change length. The TTB axles are variations of the Dana 28, Dana 35
Dana 35
The Dana/Spicer Model 35 is an automotive axle manufactured by Dana Corp. since 1985 when American Motors sold its axle tooling equipment to Dana. The axle was originally named an AMC-15 when it was first made in 1962. Dana upgraded the axle, and made IFS and Twin Traction Beam front axle...
, Dana 44
Dana 44
The Dana/Spicer Model 44 is an automotive axle manufactured by Dana Corp. and is used extensively among automobile manufacturers and in the automotive aftermarket area as well. The Dana 44 was first manufactured in the 1940s and is still being manufactured today, both front and rear axle variants...
, and Dana 50
Dana 50
The Dana/Spicer Model 50 was an automotive axle manufactured by the Dana Corp. for 25 years and was used solely in OEM Ford applications. Dana 50's were made as front axles only. The Dana 50 has a "50" cast in to the housing and is regarded to have more strength than a Dana 44, but not as much...
.
Common applications
- 1980–1997 F-150/F-250Ford F-SeriesThe F-Series is a series of full-size pickup trucks from Ford Motor Company which has been sold continuously for over six decades. The most popular variant of the F-Series is the F-150...
- 1991–1995 Ford ExplorerFord ExplorerThe Ford Explorer is a sport-utility vehicle sold in North America and built by the Ford Motor Company since 1990, as a replacement for the smaller but related Ford Bronco II. It is manufactured in Chicago, Illinois...
- 1984–1990 Ford Bronco IIFord Bronco IIThe Ford Bronco II was a compact SUV sold between 1984 and 1990. It was commissioned as a smaller complement to the full-size Bronco as well as to offer a Ford alternative to the Chevrolet S-10 Blazer, Jeep Cherokee , and Toyota 4Runner. The Bronco II was Ford's first compact SUV since the original...
- 1980–1996 Ford BroncoFord BroncoThe Ford Bronco is a sport utility vehicle that was produced from 1966 to 1996, with five distinct generations. Broncos can be divided into two categories: early Broncos and full-size Broncos ....
- 1983–1997 Ford Ranger (North America)Ford Ranger (North America)The Ford Ranger is a pickup truck produced by the Ford Motor Company. The "Ranger" name had previously been used for a premium styling package on the F-Series full-sized pickup trucks since 1965. The name was moved to this line of North American compact trucks for the 1983 model year.In North...