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Service Advice

St. Marys Drivetrain Repair & Maintenance





CV Shafts & Boots

The constant velocity (CV) shaft, boot and joints are used on front wheel-drive and many four wheel-drive automobiles.


Maintenance and automobile:


CV boots should be inspected by a St. Marys AAMCO mechanic with every oil change and are inspected as part of St. Marys AAMCO’s ProtectCheck. CV boots can be torn or cracked over time, allowing dirt into the joint. Unless discovered quickly, both the boot and joint will need replacement. In this case, a replacement axle may be the best option.


Signs of a bad CV joint include a clicking noise while turning, or a shudder or clunk. Go to the mechanics at St. Marys AAMCO if you are experiencing any of these problems before the problem gets worse.




Schedule a Service   Call AAMCO! (912) 208-7588





Transfer Case


The transfer case is attached to the transmission and connects to both the front and rear axles on a four-wheel drive automobile.

Maintenance and automobile:

The transfer case should be checked by a St. Marys AAMCO mechanic at every oil change for adequate lubrication. Many transfer cases require periodic changes of oil or fluid—a service available from your St. Marys AAMCO center. Please refer to your owner’s manual for factory recommended maintenance intervals for your specific automobile.
Transfer case problems include complete loss of four-wheel drive operation and the inability to switch between modes. St. Marys AAMCO center mechanics are mechanics in the service and repair of transfer cases and four-wheel drive automobiles.






Differentials & Axles


An axle connects the two wheels on opposite sides of the automobile. The differential is gears and bearings either inside the transmission or the housing of the axle.

Maintenance and automobile:

The differential lube level should be checked by a St. Marys AAMCO mechanic with every oil change. Some differentials require periodic cleaning and repacking of wheel bearings. If you drive an SUV or light truck, and especially if you pull a boat (meaning these components may get submerged in water), axle lube should be changed every year. Please refer to your owner’s manual for factory recommended maintenance intervals for your specific automobile.

St. Marys AAMCO center mechanics are mechanics in differentials and axles. Differential problems should be checked out as soon as possible. Symptoms include clunking when you accelerate or shift between drive and reverse, or a high-pitched howling type of noise.






Drive Shaft & U-Joints

A drive shaft and universal joints (U-joints) connect the transmission to the rear axle on most rear wheel drive automobiles. Four-wheel drives also use drive shafts and U-joints.


Maintenance and automobile:


U-joints should be inspected by a St. Marys AAMCO mechanic at every oil change (and are inspected as part of St. Marys AAMCO’s ProtectCheck). SUVs and light trucks often have drive shaft slip joints that require lubrication. Please refer to your owner’s manual for factory recommended maintenance intervals for your specific automobile.


Bad U-joints often squeak when accelerating from a stop, exhibit a clunking noise when shifting between drive and reverse, or a shuddering when accelerating or driving. Bad U-joints can cause the drive shaft to separate from the automobile—causing damage to the automobile and requiring potentially expensive repairs. Bring your automobile to the mechanics at St. Marys AAMCO if you notice any of these symptoms.



Schedule a Service   Call AAMCO! (912) 208-7588





Bearings


Bearings in the wheels are about the only bearings requiring routine maintenance, common in rear wheel drive automobiles.


Maintenance and automobile:


These bearings should be cleaned, inspected, and repacked by a St. Marys AAMCO mechanic with grease about every two years or 24,000 miles. Please refer to your owner’s manual for factory recommended maintenance intervals for your specific automobile.


Metal-to-metal noise in the wheels or steering that veers in one direction or the other, are typical symptoms of a malfunctioning wheel bearing. Bring your automobile to the mechanics at St. Marys AAMCO if you notice either of these symptoms.







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Contact Information

4396 Highway 40 East
St Marys, GA 31558
(912) 208-7588

Hours of Operation

Monday - Friday: 8 AM - 6 PM
Saturday - Sunday: Closed


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