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  2. Chassis configuration - Wikipedia

    en.wikipedia.org/wiki/Chassis_configuration

    A = number of wheels (twin-mounted tires count as one wheel) B = number of driven wheels / = the fore of the rear axles is steered (pusher axle) * = the rearmost of the rear axles is steered (tag axle) C = number of steered wheels - = separates axle groups and/or different axle functions (6x4-2 is 6x6 with undriven rear axle)

  3. Sterling 10.5 axle - Wikipedia

    en.wikipedia.org/wiki/Sterling_10.5_axle

    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.

  4. GM 10.5-inch 14-bolt differential - Wikipedia

    en.wikipedia.org/wiki/GM_10.5-inch_14-bolt...

    In third-generation Dodge Ram 2500 trucks, the 10.5 AAM axle was used in all V8-equipped trucks, with some early-model diesel and V10 trucks also adopting this axle. Similar to the 11.5 variant, this axle also features a reusable rubber gasket and bears a resemblance to the 11.5 axle in its appearance.

  5. Differential (mechanical device) - Wikipedia

    en.wikipedia.org/wiki/Differential_(mechanical...

    The left sun gear (red) provides more resistance than the right sun gear (yellow), which causes the planet gear (green) to rotate anti-clockwise. This produces slower rotation in the left sun gear and faster rotation in the right sun gear, resulting in the car's right wheel turning faster (and thus travelling farther) than the left wheel.

  6. Tire code - Wikipedia

    en.wikipedia.org/wiki/Tire_code

    The tires on a Hummer H1 might be labeled: 37X12.5R17LT. 37 – the tire is 37 in (940 mm) in diameter; 12.5 – the tire has a cross section of 12.5 in (320 mm) R – this is a radial tire; 17 – this tire fits 17 in (430 mm) rims; LT – this is a light truck tire

  7. Jeep four-wheel-drive systems - Wikipedia

    en.wikipedia.org/wiki/Jeep_four-wheel-drive_systems

    Jeep uses a variety of four-wheel drive systems on their vehicles.These range from basic part-time systems that require the driver to move a control lever to send power to four wheels, to permanent four-wheel systems that monitor and sense traction needs at all four wheels automatically under all conditions.

  8. Portal axle - Wikipedia

    en.wikipedia.org/wiki/Portal_axle

    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]

  9. Overdrive (mechanics) - Wikipedia

    en.wikipedia.org/wiki/Overdrive_(mechanics)

    [a] As the tire RPM at maximum speed is not the same as the engine RPM at that power, a transmission is used with a gear ratio to convert one to the other. [ b ] At even slightly lower speeds than maximum, the total drag on the vehicle is considerably less, and the engine needs to deliver this greatly reduced amount of power.