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The first Dana 70 axles had a 1 ⁄ 2-inch (13 mm) pinion offset and were found in Dana 70HD's as well. The drawback with the 1 / 2-inch offset was that a 4.10:1 gear ratio was the highest gear set possible. In the 1970s the 1 / 2-inch offset was phased out for a 5 ⁄ 8-inch (16 mm) offset that allowed
Offset. Offset is the perpendicular distance between the axes of hypoid gears or offset face gears. [1] In the adjacent diagram, (a) and (b) are referred to as having an offset below center, while those in (c) and (d) have an offset above center. In determining the direction of offset, it is customary to look at the gear with the pinion at the ...
The initial design of the GM 10.5" 14-bolt differential spanned from 1973 to 1984, remaining unaltered until 1986. This iteration featured brake drums secured by wheel studs and utilized a smaller diameter pinion bearing compared to the subsequent design. The second design, in production since 1986, introduced notable improvements.
The pinion pairs only mesh for the part of their length between the two spur gears, and rotate in opposite directions. The remaining length of a given pinion meshes with the nearer spur gear on its axle. Each pinion connects the associated spur gear to the other spur gear (via the other pinion).
This offset meant that a different carrier and a different ring and pinion had to be used. Dodge Cummins pickups from the "First Generation" that are not equipped with an overdrive transmission commonly have the 3.07:1 Dana 61 front axle because the higher gears are necessary to achieve reasonable road speeds at the low 2500 rpm governed speed ...
Standard 8.5" Dana 44 ring and pinion gear can be used in the IRS model through the use of an installation kit which includes special shouldered bolts to mount the standard ring gear to the IRS carrier and a special pinion bearing set to fit the standard pinion shaft to the IRS housing. Most V-12 Jaguar and E-type six-cylinder models used ...
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.
Comparison between normal and portal axles Pinzgauer portal axle. A portal axle (or portal gear lift) is an off-road vehicle suspension and drive technology where the axle tube or the half-shaft is offset from – usually above – the center of the wheel hub and where driving power is transferred to each wheel via a simple gearbox, built onto each hub. [1]