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The Twin Traction Beam or TTB was used in the Ford F-250 from 1980 to 1997. The TTB Dana 50 was also used selectively in the F-350 from 1980 to 1986. The GVW was lower in a F-350 with a TTB Dana 50, than a F-350 with a solid axle. The GAWR of a TTB Dana 50 was 4600 lbs.
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. [1] [2] The Dana Holding Corporation manufactured
The Dana/Spicer Model 60 is an automotive axle manufactured by Dana Holding Corporation and used in OEM pickup and limited passenger car applications by Chevrolet, Dodge, Chrysler, Jeep, Ford and Land Rover. There are front and rear versions of the Dana 60.
The F-150 4×4 continued the use of the Dana 44 Twin-Traction Beam axle from the 1980–1991 trucks, and the Ford 8.8" rear straight axle. The 4×4 F-250 carried the Dana 50 Twin Traction Beam axle, the Sterling 10.25 from the previous generation for the rear; full-float on the F-250 HD and the 4×4 F-350 used the Dana 60 front straight axle ...
In the 1980s and 1990s, Ford used a form of IFS known as "Twin Traction Beam" (TTB). This Dana 44 had no axle tubes but attached to the driver side traction beam, which also acted as a cover plate, and had "open air" axles which traveled through the beams to the spindles. The axles had u-joints to allow for the independent action of the beams.
On two-wheel-drive F-250 and F-350 models, the Twin-I-Beam independent front suspension with coil springs was used; their 4×4 counterparts were equipped with solid front axle (Dana 50 and Dana 60) with leaf springs. For 2005, the front suspension was updated as 4×4 trucks were converted to front coil springs; to reduce unsprung weight, the ...
Based on its two-wheel-drive Twin-I-Beam suspension from 1965, Ford mounted a Dana 44 or Dana 50 differential in the driver-side front axle beam and transmitted torque to the passenger-side wheel with a U-jointed axleshaft. TTB coil springs were still used on the F-150, while the four-wheel-drive F-250 and F-350 got leaf springs. The F-250 ...
The Dana/Spicer Model 35 is an automotive axle. It has been manufactured by Dana Holding Corporation since 1985 when American Motors (AMC) sold its axle tooling equipment to Dana. [1] The axle was named AMC-15 when it was first made in 1962. [1] Dana upgraded the axle, and added IFS and Twin Traction Beam front axle variations. Dana 35 from a Jeep