Drive Train & Transmission

CV Axles, universal joints, differentials, wheel bearings are part of the drive train. If your car has a clicking or popping noise, think CV axles or universal joints. If you hear a whinning or roaring noise, think differentials or wheel bearings. Keeping your transmission serviced is the best preventative maintenance. Ignoring these repairs can definitely leave you stranded.
ps. We Fix Funny Noises.

CV Axles

An axle is frequently called a half shaft, and consists of an inner and outer CV joint. When an outer CV joint fails, it has a click noise.

Universal Joint

Is a coupling that connects two rotating shafts allowing freedom of movement in all directions; “in motor vehicles, a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps.”

Wheel Bearing

Inside the wheel hubs are either roller or ball bearings that carry the vehicle’s weight. On RWD vehicles with solid axles, the rear wheel bearings are mounted on the axles. The front wheel bearings on older rear-wheel drive cars and trucks usually require “repacking” (regreasing) every two years or 24,000 miles. The wheel bearings on most newer vehicles are sealed and do not require any maintenance. A bad wheel bearing will typically make grinding, whining or squealing noises, and you can often feel the looseness or roughness if you raise the suspension and rotate the wheel by hand. Worn wheel bearings should be replaced, because failure may cause the wheel to come off the vehicle and I’m sure that would ruin your weekend plans.

Driveshaft

A spinning metal shaft that transmits power from the transmission to the wheels via separate axles.

Drivetrain

This is often referred to by manufacturers, especially in regards to warranty coverage. Though definitions can vary, it mainly refers to primary engine and transmission components that make the car “go.” You understand?

Stick Shift

Slang for a car with a manual transmission, a “stick shift” is also a gearshift located on the floor between the front seats.  Who knew?

Manual Transmission

A transmission system in which the gears are operated by the driver by means of a stick shift and clutch pedal. Manual transmissions are generally preferred for high-performance driving, or as a lower-cost alternative to more expensive automatic transmissions. They are also simpler, and less costly to repair as well.

Syncromesh

On manual transmission cars (“stick shifts”), a synchromesh is s device that causes two gears to spin at the same rate thus allowing them to mesh smoothly. If yours are bad, your transmission won’t shift smoothly, and may even refuse to go into gear. I hate it when that happens.

Throw-out Bearing

The part of the clutch, activated by the clutch pedal, that allows the clutch to disengage. Sometimes when they’re noisy, you can hear a cricket-like chirping come and go as you *just* press in the clutch pedal.
ps. We also fix and eliminate chirping.

Over Drive

An optional gear that allows the drive wheels to turn faster than the engine. It allows for better fuel efficiency during high speed highway driving.

Front-Wheel Drive

A vehicle that is driven by its front wheels, as opposed to the rear… Most popular sedans, minivans, and other people-movers are front-wheel drive because it is simpler, provides superior traction in rain or snow, and is generally thought to be somewhat “safer” than rear-wheel drive for the reasons.

Gearbox

A housing containing gears such as a transmission. Gearbox just sounds cooler, doesn’t it?

Differential

A box of gears between at least two wheels that allow your engine to send power to the wheels.

Clutch

On manual transmissions, the clutch is a mechanical device – operated by the clutch pedal -that engages and disengages the engine from the transmission so that you can change gears and idle without moving, etc. It generally consists of a clutch disc, a pressure plate, and a flywheel.

Clutch Disk

One of the three major components of a clutch assembly, the clutch disc is a friction place located at the end of the driveshaft, and is one of the high-wear items in the clutch setup.

Clutch Pedal

The pedal next to the brake pedal that allows the driver to operate the clutch when changing gears, very brief idling, and so on. (For extended periods of idling, the transmission should be placed in neutral rather than “freewheeling” the flywheel by holding the pedal down.)