The three types of bevel gears commonly used in rear axles are straight bevel gears, spiral bevel gears, and zero bevel gears. Straight bevel gears feature straight teeth and are simpler in design, while spiral bevel gears have curved teeth that allow for smoother and quieter operation, making them more efficient. Zero bevel gears, also known as hypoid gears, have their axes offset, which enables high torque transmission and improved load capacity. Each type has its own advantages, making them suitable for different applications in automotive design.
Hypoid gear, Spiral bevel gear, straight bevel
hypoid bevel, spiral bevel and straight bevel
Hypoid bevel
Vehicles with front wheel drive have a straight rear axle meaning there is no gear housing in the rear axle. Vehicles that are rear wheel drive have a gear box in the middle of the rear axle to change the rotation of a drive shaft to turn the rear axle. If you look under a full size pick up truck rear axle you will see a large gear box (typically referred to as a pumpkin) in the middle area of the axle. That is the gear box differential.
The rear axle.
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The three types of bevel gears commonly used in rear axles are straight bevel gears, spiral bevel gears, and hypoid bevel gears. Among these, spiral bevel gears are the most commonly used due to their smooth operation, higher load capacity, and ability to transmit power at right angles with less noise and wear compared to straight bevel gears. Hypoid bevel gears are also popular for similar reasons but are typically found in applications requiring a lower center of gravity.
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Depends on each individual truck. Look in your glovebox....there is a label from the factory with parts codes on it. The one with G refers to your gear ratio/ ring & pinion. GQ1 -- AXLE REAR, STD RATIO GT4 -- AXLE REAR, 3.73 RATIO GT5 -- AXLE REAR, 4.10 RATIO GU4 -- AXLE REAR, 3.08 RATIO GU5 -- AXLE REAR, 3.23 RATIO GU6 -- AXLE REAR, 3.42 RATIO G80 -- AXLE REAR, LIMITED SLIP (POSITRACTION)
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