Jask Auto Parts




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    Low Miles

    All Transmissions sold by us have low miles

    Gold Standard Warranty

    Upto 2 years warranty on select parts & model

    Wholesale Prices

    Up to 75% cheaper than Dealership price.

    Tested A Grade Parts

    All our Transmissions are quality tested before getting shipped to the customer.

    Nationwide Shipping

    We ship used Transmissions anywhere across the USA & Canada.

    Huge Inventory

    We have more than 1000+ registered Vendors & access to millions of parts.


    6L80 Transmission

    6L80 Transmission

    6L80 transmission is the newest addition to GM’s line of heavy-duty transmissions. The  6L80 transmission is a heavy-duty automatic transmission that was introduced in the 2004 model year. It is used for light truck and SUV applications. The gear ratios are 3.06, 2.34, 1.67, 1.00, and 0.75:1 with overdrive off or 0.87:1 with overdrive on (2nd-6th gears).

    The  6L80 transmission has six forward gears and one reverse gear with an overdrive gear that can be engaged as an option for improved fuel economy in certain conditions (mostly highway driving). The GM 6L80 transmission is the first-ever six-speed fully electronic automatic transmission for on-highway commercial trucks and buses. It offers a number of advantages over previous generation transmissions, including increased fuel efficiency and improved engine performance.

    This is a six-speed automatic transmission with an overdrive and lock-up torque converter. It was first introduced in 1994 as the transmission for the Chevrolet Corvette and was also used in other GM vehicles. It was first introduced in the 2000 Chevrolet Impala, and it has since been used in many other General Motors vehicles.

    The  6L80 transmission is a durable automatic transmission that was first introduced in the early 1990s. It is a six-speed, overdrive transmission with a torque converter lockup clutch. The main reason for its development was to replace the  4L80E transmission, which was not meeting customer expectations. This new transmission was designed to be more robust and powerful than the 4L80E and also have increased fuel economy.

    The 6L80 has had an impressive service record in both pickup trucks and SUVs, with no reported failures in production models of these vehicles. The only reported problems were found in pre-production testing on test rigs, none of which are used in production vehicles.

    The  6L80 transmission was originally designed in the 1980s by General Motors. The design was a result of a joint project with the Eaton Corporation. This transmission replaced the TH425 and THM400 transmissions in GM’s medium-duty truck line. It is still used today in light-duty trucks and SUVs.

    The 6L80 was originally introduced in the 2005 Cadillac STS V8 and is now used in many other GM models, including the Chevrolet Camaro SS, Chevrolet Corvette C6, and Cadillac CTS-V. The 6L80 transmission was designed to be more durable than its predecessor, the 4T65E transmission. It has a higher torque capacity for both stall speed and overdrive ratio, along with a larger oil pump and cooler. The 6L80 has two shift solenoids that control the shift quality by changing valve body pressure.

    The 6L80 transmission was first introduced in the 2005 Cadillac CTS.  6L80 transmission is a six-speed automatic transmission that was developed and manufactured by General Motors. It is an electronically controlled four-speed automatic transmission with overdrive, designed and manufactured by General Motors.

    The 6L80 transmission is GM’s latest generation of the 4T65E, which was used in the Cadillac STS and related vehicles. The 6L80’s design incorporates a number of improvements, including a new computer control system and improved torque converter clutch. It replaced the 4L60E as the standard Corvette’s transmission and was also available on other General Motors vehicles.

    In 2006, GM introduced a new version of the 6L80, which differed from the earlier version mainly in that it features an integrated clutch-by-wire system. The new system allows for more precise control of clutch engagement than the older cable-operated system.

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    Dimensions And Specification

    The GM 6L80 transmission dimension is the size of the transmission. It is a 5-speed automatic transmission, which consists of 4 forward gears and 1 reverse gear.

    Engine torque in the 6L80 is 440 ft. lbs. (maximum) and output torque is 664 ft. lbs (maximum). The case cast is made of aluminum alloy. Ratios in each gear is 1st: 4.02, 2nd: 2.36, 3rd: 1.53, 4th: 1.15, 5th: .085, 6th: 0.67, Reverse: 3.06


    The 6L80 transmission is a heavy-duty automatic transmission designed and manufactured by General Motors. It is the successor to the 4L60E, 5L50E, and 5L40E transmissions.

    The 6L80 features a lock-up torque converter with a 1:1 direct drive when in overdrive, as well as an overdrive gear ratio of .67:1. The 6L80 has been produced in both rear-wheel drive and four-wheel drive configurations.

    The 6L80 was introduced in 2003 for the 2004 model year Chevrolet Corvette C5-R race car, 2004 Chevrolet Colorado pickup truck, 2005 Chevrolet Malibu Maxx, 2006 Chevrolet Impala LTZ sedan, and 2007 Pontiac G6 GT coupe and sedan. It has been used in vehicles like the Chevrolet Silverado and GMC Sierra. The 6L80 is the successor to the 4L80E transmission, with a few minor differences which are mostly related to electronic controls.

    A GM 6L80 transmission is primarily used for trucks and SUVs, but it can also be found in other types of automobiles as well such as the Chevrolet Camaro and Cadillac Escalade.

    A 6L80 transmission is a great option for those who want to have the best of both

    GMC Truck

    Buy Used 6L80 Transmission

    Our Requirements

    Buying a used 6L80 transmission for sale is simple for us. We just need a few details & our team will get back to you with a free quote & the perfect engine for your car or truck. Once you provide us with the following given details, we will instantly start working on your order.

    • Vehicle identification number (VIN).
    • Your business or residential address for free shipping.
    • Mileage that you are looking for

    We all know engine replacement becomes profitable and satisfactory only when the required job is done within your expected budget and the replaced engine lasts long. We have a wide variety of used motors or engines for different brands like Mercedes, Audi, Honda, Chevy, Ford, etc. It will be a great pleasure for us if you will give us a chance to assist you.

    Advantages of Buying Used Transmission for Jask Auto Parts Inc.

    • Best Quality
    • Right 6L80 for your car, checked for compatibility with VIN ( Vehicle Identification Number)
    • Upto 2 Years Warranty
    • 1000 + Inventory Yards to find the best used 6L80 Transmission
    • Shipping anywhere in the 48 Continental United States.
    • Our engines are properly cleaned, inspected & tested.

    Apart from providing superior quality, we also provide other used transmissions and used engines with a warranty. We will replace your part for free if it faces any technical issues & come under a warranty period & its term. We not only want to sell engines but satisfy our customers with excellent quality, performance & service in the long run. We aim to bring your vehicle back on the road as soon as possible. We also provide used engines of all makes & models, covering but not limited to Ford used engines, Porsche used engines, Honda used engines, Audi used engines, Chevy used engines & Mercedes used engines.

    Find Used Transmissions for Sale NEAR YOU


    We are a nationwide service provider and with multiple warehouses and vendors across the nation. Just fill the quote form and we will get back to you within 6-12hrs or choose your state.

    Frequently Asked Questions!

    When you order an used engine assembly, it is a complete assembly including manifolds, oil pan, timing belts and covers, fuel injection or carburetor, we warranty only the long block.

      • All are engines are checked before they are shipped out.
      • Items such as the water pump, distributor cap, spark plugs & wiring and at times timing chain may need to be replaced. Jask Auto Parts will not be held liable for these parts listed as they are considered high-wear parts.
      • The manifolds, gaskets, seals, hoses, oil pan, timing belts and covers, fuel injection or carburetor, are not. accessories such as but not limited to turbos, starters, air compressors, alternator, power steering pumps, optical distributors, wiring harnesses or electrical water pumps are usually not included nor under warranty in regards to the sale and/or warranty of an engine.
      • Please, check the warranty for the engine with your sales agent.
      • For additional information about Warranty, Return & Refund Policy | terms & conditions | Shipping Policy  log onto our parent website www.jaskautoparts.com

    A used engine or used transmission isn`t probably as dependable as a brand new or remanufactured engine. Any drivetrain part is good as how nicely it was kept, and with used auto parts, you hardly ever find out the upkeep history of that car.

    It is very common to use remanufactured engine in a vehicle, which is essentially a used engine that has been repaired. Depending on who does the reman work, it is probably akin to a brand-new engine.

    A low-mileage used engine is mostly better that a new one, however they are not easy to find. But with some research you can find a good used engine and save yourself some money.

    It’s a bit of a wager both ways. If it is a rebuild by a specialized store with a good repute, I myself would possibly take the rebuild.

    However, if it’s a working used engine with provable low miles, and the charge was right. I for one would consider it too. I would open the valve covers and look inside, see how was it kept?

    So, the answer is It depends on several factors, a rebuilt or a used engine both can give you years of comfort without visits to a mechanic. You just need to look closely and choose carefully. 

    You can buy used engine or other auto parts buy visiting our site and selecting make, model and the part you need with other details to find your perfect auto part. Or you can simply call us and our customer support operator will guide you through the process which is simple, easy and quick.

    If you aren’t satisfied with the auto part, or you have received a damaged one, you can easily return or replace it. Sometimes auto parts can get damaged in transit or it just doesn’t fit, whatever the reason, you can be at ease as we provide full warranty with every auto part. You can get your money back or a replacement whatever you prefer.

    WHAT CUSTOMER Say About us!

    Excellent service.
    Sent a picture of car from which part was taken, part arrived promptly and fit perfectly

    Steve Stewart

    Awesome customer service

    Awesome customer service, timely delivery with tracking and great fellowship!

    Ismenio Lampe

    The service was quick.

    The service was quick. They went way out of their way to get the best part for my needs. The parts were exactly as described and worked perfectly for me.
    I will buy from them again.


    Mike was very attentive and helpful

    Mike was very attentive and helpful. I searched for a door mirror for my 1999 Mercedes and just a couple days later, Mile called to let me know he found one for me. He made sure he had the exact item that I needed. The transaction went smoothly and I received my mirror a week later. Thank you so so much. Highly recommended!!!

    June N.

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