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What is Transmission


Car Transmission is a vehicle’s gearbox. It’s roughly analogous to the gear shifter and chain system that bicycles use.

These components are always mounted straight on the engine so that their attached belt and gear system can effectively convert the combustion power produced by the engine into physical momentum.

A typical car transmission consists of between five and six gear sets and a series of gear trains (essentially belts or chains that run along the outside of two or more gears) – that allows a driver to control how much power is delivered to the car without changing how fast the engine runs.

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What Does a Transmission Do?

Transmissions are necessary for any motor vehicle in order to prevent the engine from destroying itself. Without a gearbox system, car engines would turn too quickly for structural stability, meaning most engines would shake themselves to pieces or overheat. Furthermore, any car without a transmission would be unable to harness the engine’s speed, capping its maximum velocity.

A transmission changes gears depending on car speed and accelerator input (i.e., how far down you push the pedal of your car) so that the engine’s RPM or “revolutions per minute” are kept appropriately low.

    This provides two benefits:

  • Fuel consumption has decreased.
  • The turning gears do not overload your engine.
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What Are the Different Types of Transmissions?

Cars are continuously evolving, improving, and becoming more efficient. That goes for the transmission as well. There are three types of transmissions in use—manual, automatic, and CVT transmissions—each geared toward specific needs and driving styles.

Manual Transmissions

The Manual Transmission is the original type of transmission. It’s also called the standard transmission, but there’s a good chance you’ll know it as the stick shift. This type of transmission has the driver using a clutch to control the torque transfer from the engine to the transmission, manually shifting between gears as necessary. Mechanically, manual transmissions are the simplest type of transmission and often last longer than other types—simply put, there’s less that can go wrong. The only major disadvantage to the manual transmission is the learning curve; these types of vehicles require more concentration and maneuvering than other transmissions.

Automatic Transmissions

Yes, manual transmissions are mechanically simpler, but with the caveat of being harder to operate. If a driver doesn’t have the time to take on the extra work that comes with driving a stick shift, then they’re best suited for choosing to drive an automatic transmission vehicle. This type of transmission automatically changes gears as the vehicle moves, leaving the driver to focus more on the road, rather than shifting the clutch. Once a car is in drive, its computer takes over the transmission, shifting between gears as necessary while the car accelerates and decelerates.

You’ve probably heard the sound of your engine getting higher, but then the sound drops as you continue to accelerate; that's your car moving from a lower to a higher gear. Most Automatic Transmissions have between five and ten gears—and the more gears your transmission has, the better it will perform at different speeds. A transmission with more gears means a vehicle has a wider range of speeds where it will perform optimally and lead to better overall fuel economy.

CVT Transmissions (Continuous Variable Transmission)

The more gears a transmission has, the better it will operate over a wide range of speeds. But what’s the limit when it comes to the number of gears a transmission can have? Thanks to the Continuous Variable Transmission (CVT), there is a continuous—or limitless—amount. It’s also known as the shiftless transmission and, unlike other types, the CVT transmission doesn’t use gears as a means for producing varying speeds, but instead relies on a belt-driven design of two rubber or metal pulleys. The two pulleys work in sync, mimicking the effect produced when gears of different diameters are engaged.

The CVT transmission isn’t new; it’s been around for decades, rising in popularity among Japanese and European manufacturers in the mid-2000s. If you’re looking for a car with a CVT transmission, you’ll need to do some research. Most new cars will state the type of transmission they have on the window sticker. If you’re buying a pre-owned car, some online research will help to determine the type of transmission a certain make and model has installed.

Although CVT transmissions offer a limitless range of gears and superior fuel economy, they do have their limits. This type of transmission is not suited for off-road environments, due to its limited torque-handling ability. Another drawback is that CVT transmissions cannot provide engine braking. Because of their complexity, these transmissions routinely require more maintenance and repairs can be costly. Over time, the belts can break down due to excessive wear and stretching. When you’re searching for a shop to work on your transmission, be sure to check if they’re able to work on CVT transmissions—going to a dealer facility is a good option as well, though it will be expensive.

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Used Transmissions

Do you have major transmission issues, a failed transmission, or are you just looking for an affordable Used Automated Manual Transmission Replacement? Whatever your vehicle's needs are, Used parts On Sale undoubtedly has the exact replacement for your transmission swap. We have the best affordable used transmissions for all the major car brands, including GM, Chevrolet, Dodge, Ford, Nissan, Honda, and Toyota.

Even though we always offer the best price on all our used transmissions, you can trust that our used transmissions are the highest quality available on the market today. Each used transmission undergoes a basic inspection during our Quality Assessment process where the transmission goes through basic function tests to ensure the transmission is indeed in good working condition.

Additionally, our customer service team is also always standing by to help you find the best transmission for your American or import car, truck, or van. We can use your VIN or year, make, and model to pinpoint the transmission that will work best for your repair project.

Once you find the exact used transmission you need, we will provide fast, free shipping right to your commercial address.

Rebuilt & Remanufactured Transmissions For Sale

We offer a best price Guarantee on our Remanufactured Engines

If your vehicle has a transmission slip, grind, or stutter, it’s probably time to head to your local mechanic and see what your options are. When the mechanic recommends a transmission replacement, oftentimes, they will recommend a rebuild of your old transmission instead. A rebuilt transmission will fix your vehicle and should last longer than a used transmission, however; A remanufactured transmission will give you the best bang for your buck when it comes to longevity and price.

We carry remanufactured manual and automatic transmissions from nearly every single domestic and import automaker. As a team, we go above and beyond the rebuild to completely remanufacture the entire transmission assembly from the inside out to our strict specifications.

Our professional team of engineers and technicians reverse engineer each remanufactured transmission to fix commonly known original manufacturer issues and make sure that our transmissions will meet or exceed OEM standards. Every component in the transmission assembly is replaced or re-machined including but not limited to the clutch packs, valve body, solenoids, output shaft, input shaft, band brake, torque converter, and planetary gears.

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Why Used parts On Sale

By choosing usedpartsonsale as your go to supplier of quality reconditioned transmissions for gasoline and diesel vehicles, you get quality parts that never fail. In fact, you can trust that all our transmissions are solid as a rock and built to exceed your every expectation.

Our Advanced Team

We have a robust team of engineers, technicians, mechanics, and support staff so when you get a used, remanufactured, or rebuilt transmission from Used parts On Sale, you know you’re getting the best products possible at the best price. All of our refurbished transmissions go through a complete teardown and rebuild process, which includes resolving factory defects. Through that process, we help eliminate known issues that impact performance and reliability.

Customer Support Staff

If you prefer to speak directly to our team, you can give us a call and get a quote. Our rock solid team offers the best customer service in the industry, making it easy to move on with your restoration or repair project. Although we are the leading place for affordable transmissions, we will match any competitor's price for any identical part. So, if you can find a smart retailer offering a cheap price, let us know, and we will match it.

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