Chapter 130 Drivelines - Nicholas Gaspar

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Centennial College *

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Mechanical Engineering

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Apr 3, 2024

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1. Inside the drive axle of a rear wheel drive vehicle, the ring gear is attached to the Pinion Gear. 2. A limited-slip differential has Clutch Packs on the gears that a standard (open) differential does not have. 3. A collapsible spacer is used in some differentials to provide the proper preload for the drive pinion bearings. 4. The shim used on a drive pinion gear is used to properly position the gear so that it can correctly mesh with the Ring Gear. 5. Technician A says that the convex side of the ring gear is the drive side on most rear axle assemblies. Technician B says that the convex side of the ring gear is the drive side of differentials used in the front of many four-wheel-drive vehicles. Which technician is correct? Technician A only. 6. A growling sound is heard from the rear of a rear-wheel-drive vehicle during cornering only. Technician A only says that a defective rear axle bearings may be the cause. Technician B says that defective drive pinion bearings may be the cause. Which technician is correct? Technician A only. 7. Technician A says that if the backlash is okay, then the side bearing preload is also okay. Technician B says that a ring gear tooth pattern check will indicate if the drive pinion depth is correct. Which technician is correct? Technician B only. 8. The backlash exceeds specifications. The technician should position the ring gear closer to the drive pinion gear. 9. The backlash is less than specifications (too low). This will cause the ring gear tooth pattern to be too close to the toe .

10. Two technicians are discussing which lubricants are used in a limited-slip differential. Technician A says to use SAE 80W-140. Technician B says that most vehicle manufacturers usually specify SAE 80W-90 be used with or without special limited-slip additives. Which technician is correct? Technician B only.

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