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Twin-Traction Beam (TTB) is an
Twin-Traction Beam (TTB) is an independent suspension
Independent suspension is any automobile suspension system that allows each wheel on the same axle to move vertically (i.e. reacting to a bump on the road) independently of the others. This is contrasted with a beam axle or deDion axle system in w ...
system for front drive axles in four-wheel drive
Four-wheel drive, also called 4×4 ("four by four") or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case ...
Ford F-Series trucks and sport utility vehicles.
Background
Twin-Traction Beam was invented by John A. Richardson and Donald G. Wheatley of Ford Motor Company covered by US patent 3,948,337 issued April 6, 1976. The patent name was “Independent front suspension for front-wheel drive” which was assigned to Ford Motor Company. The Dana Holding 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
The Dana 44 is an automotive axle manufactured by Dana Holding Corporation and is used among automobile manufacturers and in the automotive aftermarket
The automotive aftermarket is the secondary market of the automotive industry, concerned wit ...
, and Dana 50
The Dana/Spicer Model 50 was an automotive axle manufactured by the Dana Holding Corporation for 25 years and was used solely in OEM Ford applications. Dana 50's were made as front axles only until it was revived in rear solid axle configuration in ...
.
Applications
Common applications include: *1980–1997 F-150/F-250 *1991–1994 Ford Explorer *1984–1990 Ford Bronco II *1980–1996 Ford Bronco *1983–1997 Ford Ranger (North America) *1993-1997 Mazda B series *1991-1993 Mazda NavajoSee also
*Corvette leaf spring A Corvette leaf spring is a type of independent suspension that utilizes a fiber-reinforced plastic (FRP) mono-leaf spring instead of more conventional coil springs. It is named after the Chevrolet Corvette, the American sports car for which it was ...
* MacPherson strut
*Torsion beam suspension
The twist-beam rear suspension (also torsion-beam axle, deformable torsion beam or compound crank) is a type of automobile suspension based on a large H or C-shaped member. The front of the H attaches to the body via rubber bushings, and the r ...
* Weissach axle – a variant of Double wishbone suspension with a short link at the front pivot bushing of the lower A-arm
References
{{Dana Corporation Automotive suspension technologies