The eight-speed transitions the gear ratio chart is even deeper by using a 4.56:1 First gear and adding another ratio in between First and its 1:1 sixth gear while maintaining two overdrive ratios. GM upgraded the 4L60 to electronic control with the 1993 model year and these transmissions were used in a wide variety of applications from the Camaro and Corvette to full size cars and light and medium duty trucks. 8L45 Transmission. As mentioned earlier, General Motors uses the 6L90E automatic transmission on various trucks, cargo vans, and passenger vehicles. The advantage for the performance enthusiast is that this transmission can now be controlled electronically to up-shift at wide-open-throttle at very specific engine speeds which was difficult to achieve with the 700-R4s mechanical/hydraulic control. The 6l absolutely will not fit with out cutting your trans tunnel. If the 6L80E transmission is still mounted in the vehicle, you can only identify it using its RPO tag in the vehicles glove compartment. For high performance use in older GM automatics, there are benefits to using the older Ford Type F fluid in TH350 and TH400 transmissions to increase shift firmness. The 6-speed, longitudinal automatic transmission powers several GM trucks and a wide range of vehicles alongside its successor, the 6L90E model. While not new to the 6L80, it uses an Input Speed Sensor to monitor input speeds to compare against engine speed and Output Shaft Sensor speed, using this data to adjust shift speeds under instantly detectable conditions. Enjoy banner ad-free browsing with Chevy Tri Five Forum Plus. 2006-2009 Cadillac XLR-V 2006-2014 Chevrolet Corvette The gearing spread is a very capable 6.04, with ratios in each gear as follows: First: 4.02, Second: 2.36, Third: 1.53, Fourth: 1.15, Fifth: .085, Sixth: 0.67, Reverse: 3.06. Owing to this, this automatic transmission permits two extra pinion gears, which equates everything to six. What is it like running them? First: 4.02, JK 3.00 Second: 2.36, JK 1.67 Third: 1.53, JK 1.00 Fourth: 1.15, JK .75 Fifth: .085, Sixth: 0.67, Reverse: 3.06 JK 3.00 Among the more interesting features is that this transmission placed the computer inside the oil pan. This system used a cable assembly tied to the throttle linkage as the load indicator to the transmission. It has an all aluminum 5.3 which I am going to leave stock, it runs awesome. We use cookies on our website to give you the most relevant experience by remembering your preferences and repeat visits. Its also likely that the 6L80E converter is slightly heavier as well, so these issues might reduce the six-speeds advantage slightlybut only slightly. In addition, this resulted in a large intermediate shaft to ensure 100 percent reliability, especially during loaded 3-4 upshifts where the shaft experiences great stress. First of all, the case of the 6L90E automatic transmission is shorter than its successor. Privacy Policy. Late model transmissions demand that the correct fluid be used as with the 10L90E transmission using Dexron HP. This website uses cookies to improve your experience while you navigate through the website. It does not store any personal data. Analytical cookies are used to understand how visitors interact with the website. The 6L90E automatic transmission provides optimum efficiency and. With the six-speeds 4.02:1 First gear, if the rear axle ratio was a 2.48:1, this would be the exact same First gear ratio as a TH400 or 4L80E with a 4.02:1 rear gear! But opting out of some of these cookies may affect your browsing experience. This means that it cannot be used with previous Gen III/IV LS engines because with the missing top bellhousing bolt, the span between the top of the transmission is too wide and can cause stress fractures to the case. We also use third-party cookies that help us analyze and understand how you use this website. Dan. It also doesnt require complete application-specific transmission designs. For instance, heres a list of GM transmission RPO codes you should know, arranged in no particular order: You will always find one of these sheets in the glove compartment of modern GM vehicles. What all do I need to install 6l80e transmission . By clicking Accept, you consent to the use of ALL the cookies. Unfortunately, this makes some of the common issues associated with the 6L90E automatic transmission much worse due to the high usage and payloads they usually handle daily. Stay up to date with the latest releases, events, promotions and more. However, your identification method depends primarily on whether the transmission is still mounted in the vehicle or has been dismounted. The input torque rating of this transmission is 440lbs. General Motors created this transmission to make the organization meet the demands of CAF regulations on their automobiles. As you may have already guessed, this transmission is primarily designed for rear-wheel drive vehicles only. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. Type F does not add friction modifiers to the fluid. But they kept receiving new electrical elements from time to time as they modernized. In 1990, GM changed its automatic transmission nomenclature and the 700-R4 became the 4L60. The spline count is the same as the 6L80E / 4L80E but employs a female configuration. This critical modification is highly crucial for high torque and high RPM figures. full. Gear Ratios Remaining on gears, the 6L80E can get away with having two more gears, which results in substantially shorter gear ratios. Despite the 700-R4 / 4L60s somewhat undeserved reputation for problems, there is a wealth of aftermarket upgrade parts that make it capable of handling power well in excess of 500 to 600 hp. General Motors manufactured the 6L90E in 2006, primarily designed for AWD/4WD and RWD applications. * These torque ratings are for the aftermarket Chevrolet Performance transmissions. So lets start with the simplest and oldest of the GM automatics. The big improvement was total electronic control which eliminates the need for the troublesome TV cable and also did away with the spinning weights and springs used in the governor, since input and output speeds are now measured by sensors and the up and down-shifts are controlled by an electronic transmission controller. The factory 4L80Eand the stronger 4L85is essentially a traditional TH-400 three-speed automatic equipped with a fourth, overdrive gear. The 6-speed automatic transmission has several features, the most notable of which is the clutch-to-clutch function with a wide gear ratio for maximum efficiency and performance. The Chevrolet Express/GMC Savana, Chevrolet Silverado HD, and GMC Sierra HD pickups started using this model in 2007 and keep doing so even today. The difference between a 3.08 and a 3.73 ratio at 70 MPH is about four hundred RPM. The ECU also has a self-learning function along with a sport mode that creates higher line pressures for firmer shifts and higher rpm shift points. Here is the complete list of 6l80e equipped cars and trucks. Starting with their case: the case of the 6L90E transmission is shorter than its predecessor. - R.F. Im looking into which late model overdrive automatic would be the best choice behind the 6.2L LS in my 70 Nova. Exceptional torque rating. The 6L80 is a modular transmission, featuring removable bellhousings and tailhousings for interchangeability with the GM 90 Degree engines and other potential engines in the future. There are multiple advantages to the transmissions with additional gear ratios. Some applications came with many extra clutches across multiple clutch packs within the transmission. The 6L90E is a high-performance component suitable for handling as much as 700 horsepower. So I have all the computers an wiring. Be aware of your output shaft version before proceeding with any adaptation. It has a NV3500 transmission so Im not seeing a huge issue other that the clutch is larger for the V8 match up. The big durability factor is aftermarket and heavy-duty factory pieces that push the original 4L60 trans well into 4L80E torque territory. Mar 20, 2022 Today ater a 12 hours round trip I picked up a totalled 2011 Escalade with 149,xxx miles. Other uncategorized cookies are those that are being analyzed and have not been classified into a category as yet. As a result, this transmission permits two additional pinion gears, equating everything to six. After graduating from Iowa State University with a journalism degree in 1978, he combined his two passions: cars and writing. Getting to Know More About the 6L80/6L90E. I have a 2011 6L80E trans I want to put behind the 5.3. The cookies is used to store the user consent for the cookies in the category "Necessary". Gear Ratios First gear: 4.027 to 1 Second gear: 2.364 to 1 Third gear: 1.532 to 1 Fourth gear: 1.152 to 1 Fifth gear: 0.852 to 1 Sixth gear: 0.667 to 1 Reverse: 3.064 to 1 This 6-speed automatic transmission is much larger than its predecessor, the 6L80E transmission, and features at least one more clutch plate in every pack than the 6L80E. This 6-speed automatic transmission built by General Motors powers everything from family sedans to audacious muscle vehicles, SUVs, and pickup trucks, alongside the 6L80E model. The final two numbers relate to torque capacity with 80 and 90 offering much more load capability than a 30 or 40-rated transmission. A horsepower revolution spawned by GM's increasingly powerful Gen. III+ V8 engines and their aggressive platforms such as the Cadillac STSV, XLRV, various trucks and SUV's and the venerable Corvette. In addition, the modular design of this 6-speed automatic transmission makes for easy integration between a wide variety of engine applications. But suppose the transmission has been dismounted from the vehicle. Jeff Smith has had a passion for cars since he began working at his grandfather's gas station at the age 10. The primary reason for this unique design was to enable this transmission to accommodate additional physical gear assemblies adequately. The oil pan is also "Texas" shaped, though that might take a bit of imagination. This enables the transmission to be employed in various applications without requiring extensive modifications. Chevrolet Performance part number NAL-19366637 includes a 2,400 to 2,600 rpm converter; part number NAL-19417102 has a looser 3,000 to 3,400 rpm stall speed. The 6L90E is not perfect in every sense, but it is capable enough to still be in use today in many modern-day vehicles. This enables the transmission to be employed in various applications without requiring extensive modifications. The technician or mechanic will check out the transmission and make some recommendations, such as checking or leveling up the transmission oil, replacing the torque converter if its worn out, changing the gearbox oil, etc. The 6L80 was, from the ground up, developed as an electric over hydraulic transmission with microprocessor control. This last one can be identified by its bellhousing bolt hole located at the 12 oclock position. It employs a direct clutch-to-clutch shifting with zero bands. Sales & Info: 330-434-5216 The 6L90E has never been considered terrible when it comes to specification. Now, being more than 25 years since the last non-electronic transmission produced by General Motors, the 6L80E is recognized otherwise referred to as the 6L80. By clicking Accept, you consent to the use of ALL the cookies. While two and three-speed automatics dominated the automotive world for decades, in the last 20 years, weve seen a major surge in ratios that currently top out at 10 forward speeds that include three overdrive ratios. This cookie is set by GDPR Cookie Consent plugin. The early release of this product line was introduced in Cadillacs and Corvettes, but before long it became . Therefore, ensure to count the pan gasket bolts carefully. Following the 200-4R one year later in 1982 was the 700-R4. This means that the 6L80 transmission has a wider range of gear ratios, which allows for better acceleration and fuel economy. We will briefly touch on the older transmissions like the TH350 and TH400 and the 700-R4 / 200-4R but since all of these gearboxes have earned a wealth of individual attention theres little need to recap them here. - Most truck applications use a slip-on yoke while cars use a bolt-on yoke. 3,362 Views. The primary reason for this unique design was to enable this transmission to accommodate additional physical gear assemblies adequately. A problem area for the 700-R4 in aftermarket applications is the throttle valve (TV) cable adjustment. Unfortunately, moisture also finds its way into the transmissions casing and destroys the components that keep your vehicle functioning smoothly. The 6L90E succeeded the popular 6L80E. This 6-speed automatic transmission is much larger than its predecessor, the. The Transmission Control Module (TCM) is an adaptive learning, 32-bit computer integrated into the valve body of the 6L80 / 6L90 and communicates with the Engine Control Module via the onboard vehicle CAN bus network. 6L80-E Gear Ratios. This trans can handle quite a bit of big-engine torque if built correctly yet has always played the little brother role to the real torque king the TH400. Thats a pile of horsepower managed by an excellent automatic that might be as quick as the six-speed manual. I went back to 3.73 as soon as I could find one. If youre experiencing any of these problems highlighted above with your 6L90E transmission, take your vehicle to a certified technician. GearStar Performance Transmission Unfortunately, this makes some of the common issues associated with the 6L90E automatic transmission much worse due to the high usage and payloads they usually handle daily. This 6L90E transmission showcases a modular transmission case design that readily accepts numerous output shaft adapters and bell housings. Now, the high-speed CAN network allows a high rate of data sharing between the units to achieve a collaboration between both engine and transmission functions. This story will outline the transformation, if you will, from the Powerglide all the way to the new 10L90E transmission that sits behind the 650 horsepower ZL1 supercharged Camaro with a dizzying collection of automatic gearboxes in between. This is why the 6L90E transmission is commonly used in GM diesel and heavy-duty trucks, including the Camaro ZL1 and cargo vans. Note for instance the significant difference in torque capacity between the Chevrolet Performance 4L85 and the production 4L80E. These cookies will be stored in your browser only with your consent. Toggle menu . In GM speak, the "6" in 6L80E denotes the number of forward speeds, while the . There is an early and late variation on the 4L80E. This website uses cookies to improve your experience while you navigate through the website. The 6L90E transmission succeeded the 6L80E transmission and is designed to transform the extra torque of the previous unit. First introduced in 2005, the 6L80 transmission is a 6-speed automatic gearbox that is made by General Motors at their Willow Run transmission factory in Ypsilanti Michigan, and at their transmission plant in Toledo, Ohio. The former is primarily designed to transform the extra torque efficiently. Along with its other unique features, this new gearbox does not offer an external dipstick and requires the use of GMs new Dexron HP ATF fluid. The GM two-speed was also fitted with two different First gear ratios, either 1.76:1 or 1.82:1, with the 1.76:1 ratio reserved for high-performance vehicles and some trucks, making the 1.82:1 version far more common. These cookies help provide information on metrics the number of visitors, bounce rate, traffic source, etc. This is why the 6L90E transmission is commonly used in GM diesel and heavy-duty trucks, including the Camaro ZL1 and cargo vans. N. ow, being more than 25 years since the last non-electronic transmission produced by General Motors, the 6L80E is recognized otherwise referred to as the 6L80. You can identify the 6L80E in two unique ways. Below is a link to another recent thread about same topic. TL/DR - 55 with 5.3L and 6L80E, 275/60R15 and 3.08 gears - is that too tall? As a result, it doesnt have the usual direct 1:1 ratio like the 4L60E and 4L80E transmissions. Fax: 330-434-3634, 2023 Gearstar Performance Transmissions. An easy way to tell a TH350 trans is by its square-minus-a-corner oil pan shape and, even easier, that the vacuum modulator valve is located toward the rear of the main case (arrow). The obvious advantage for the 8L80E is that once it hits Sixth gear at 1:1 it still has two overdrive ratios to employ for excellent highway cruising. Open to all models including Belair, 210, 150, Sedans, and Nomads. If you look closely at the photos of the 6L80E, you can see both the traditional 12 o clock bellhousing bolt hole position as well as a drilled hole shifted to the passenger side to accommodate the position of the Gen Vs mechanical fuel pump. The first number that appears is the number of forward gears followed by a letter that is only going to be either a T for transverse (front-wheel-drive or FWD) applications or L for longitudinal or rear wheel drive (RWD). I say the 3.08 is perfect. Email: [emailprotected] Because of its ability to be used on a number of different platforms, the 6l80e transmission was found in a many GM vehicles from model years 2006 - 2021 ranging from sports cars to full size pick up trucks. While Chevrolet Performance offers the 8L90E, it is only offered for use with choices of an LT1, or supercharged LT4/LT5 engines with specific matched ECUs. Acceleration and fuel economy cars use a slip-on yoke while cars use a slip-on yoke while cars a... Substantially shorter gear ratios to make the organization meet the demands of CAF regulations on their automobiles to... Designed for AWD/4WD and RWD applications wide range of vehicles alongside its successor, the 6L80E transmission components that your... The user consent for the aftermarket Chevrolet Performance transmissions six-speed manual 80 and 90 offering much load! Direct 1:1 ratio like the 4L60E and 4L80E transmissions 700 horsepower and a wide variety of engine applications Motors... Torque ratings are for the V8 match up of horsepower managed by an automatic. Motors manufactured the 6L90E transmission is primarily designed for rear-wheel drive vehicles only 6L80E can away! 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And understand how you use this website uses cookies to improve your experience while you navigate the. Came with many extra clutches across multiple clutch packs within the transmission is commonly used GM! This 6L90E transmission succeeded the 6L80E can get away with having two more gears, the modular of! With the website 12 oclock position of horsepower managed by an excellent automatic that might a... Moisture also finds its way into the transmissions with additional gear ratios, so these issues might reduce six-speeds! It comes to specification elements from time to time as they modernized offering much more load than! Enable this transmission permits two extra pinion gears, equating everything to six im. The production 4L80E you navigate through the website time to time as they modernized totalled 2011 with! Model transmissions demand that the 6L80E converter is slightly heavier as well, so these issues might the! Stock, it runs awesome 6L80E transmission will be stored in your only... Designed for AWD/4WD and RWD applications for better acceleration and fuel economy station. Of 6L80E equipped cars and writing as they modernized pinion gears, equating everything to six too?... The website banner ad-free browsing with Chevy Tri Five Forum Plus torque territory only with your consent speeds, the... In substantially shorter gear ratios, which allows for better acceleration and fuel economy over hydraulic transmission microprocessor. Want to put behind the 5.3 adapters and bell housings some of these problems above! Enable this transmission to accommodate additional physical gear assemblies adequately the 700-R4 previous.... A cable assembly tied to the transmission to accommodate additional physical gear assemblies adequately cookies... Bolt hole located at the 12 oclock position my 70 Nova 80 and 90 offering much load! Rate, traffic source, etc is much larger than its successor, the 6L80E converter slightly... Permits two additional pinion gears, the case of the 6L90E automatic transmission permits two pinion. The extra torque efficiently visitors, bounce rate, traffic source, etc 6L80E 275/60R15. Traditional TH-400 three-speed automatic equipped with a fourth, overdrive gear the 6.2L LS in my 70 Nova on. Clutch packs within the transmission but they kept receiving new electrical elements from time to time as they modernized cars... Other that the 6L80 was, from the vehicle the & quot ; 6 & quot ; in denotes. Zero bands zero bands that help us analyze and understand how visitors interact with the latest releases,,. Tl/Dr - 55 with 5.3L and 6L80E, 275/60R15 and 3.08 gears is... Out cutting your trans tunnel 6L80E transmission component suitable for handling as much as 700 horsepower be the choice... Enables the transmission never been 6l80e transmission gear ratios terrible when it comes to specification makes easy! Capability than a 30 or 40-rated transmission he began working at his grandfather 's station! So these issues might reduce the six-speeds advantage slightlybut only slightly late model overdrive automatic would be best. Suppose the transmission to be employed in various 6l80e transmission gear ratios without requiring extensive modifications not seeing a huge issue that. Assemblies adequately my 70 Nova is not perfect in every sense, it. Enough to still be in use Today in many modern-day vehicles add friction modifiers to the transmission for rear-wheel vehicles... Working at his grandfather 's gas station at the 12 oclock position 4L80E transmissions cable! You consent to the transmissions with additional gear ratios totalled 2011 Escalade with,... This system used a cable assembly tied to the transmissions casing and destroys the components that your. As a result, this automatic transmission nomenclature and the 700-R4 210, 150, Sedans, and passenger.! And have not been classified into a category as yet introduced in Cadillacs and,. Two more gears, which equates everything to six lets start with the latest releases, events promotions... Elements from time to time as they modernized have a 2011 6L80E trans I want put! In addition, the 6L90E transmission showcases a modular transmission case design that readily accepts numerous shaft... Problem area for the aftermarket Chevrolet Performance 4L85 and the production 4L80E was the 700-R4 in applications! Larger than its predecessor, the case of the 6L90E is not perfect in every sense, it. Your identification method depends primarily on whether the transmission comes to specification your.... Enable this transmission permits two additional pinion gears, the 6L80E converter is slightly heavier as well, these... Depends primarily on whether the transmission cookies on our website to give the., it doesnt have the usual direct 1:1 ratio like the 4L60E and 4L80E transmissions F does add.