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The Ford-O-Matic two-speed transmission was introduced in 1959. A simplified version of the Cruise-O-Matic, it combined a torque connector and a compound planetary gear set. A front unit (multiple-disc) clutch provided high gear, a front band on the clutch drum provided low gear, and a band on the rear unit internal gear drum provided reverse.
For model year 2000 - 2004 trucks, the F-150 7700 offered this axle and the F-250 light duty was discontinued. At least till 2011 the 12 bolt semi float was still found with the heavy duty f-150. Gear ratios were 3.73 in 4x4 and either the 3.73 or 4.10 in the two-wheel-drive models. This was available in both limited slip and standard variations.
A variation of the Dana 60 known as a Dana 61 was made to accommodate gear ratios that allowed for better fuel mileage. This was done as a direct result of the 1973 oil crisis. A 3.07:1 gear ratio was common for these axles and unachievable in a regular Dana 60. To allow for the different gearing, the Dana 61 had a greater pinion offset.
The transaxle configuration combines the gearbox and final drive in one housing and is only built in individual cases; In the transverse direction, the gearbox and final drive are very often combined in one housing due to the much more restricted space available; Every type of transmission occurs in every type of installation.
Ford's 10-speed 10R140 TorqShift automatic transmission was now standard with the diesel and 7.3-liter gasoline engines on the F-250 and all engines on the F-350; the 6-speed was still available, but only in the F-250 with the 6.2-liter engine and even the F-350 XL DRW with the Payload Package of the same engine (though this is a rare option).
F-series Heavy Duty like F-250, F-350 are available in Super Cab and Crew cab with long bed, but the F-450 is available only in a chassis version. The F-150 Raptor is available, too. In the United Kingdom, most imported Ford F-Series trucks are the F-150 model in LHD, and usually the higher-end four door versions.
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The recirculating ball steering mechanism contains a worm gear inside a block with a threaded hole in it; this block has gear teeth cut into the outside to engage the sector shaft (also called a sector gear) which moves the Pitman arm. The steering wheel connects to a shaft, which rotates the worm gear inside of the block.