Gearstar Performance Transmission Automatic Transmissions GS6L804X4L4

Description

Product Overview

The Gearstar Performance Transmission Automatic Transmissions GS6L804X4L4 is a performance-focused automatic transmission listed as a GM 6L80E four-wheel/all-wheel-drive 6-speed overdrive transmission designed for LS engines. This makes it a specialized choice for compatible LS-based drivetrain builds that require a modern electronic overdrive automatic transmission with 4WD or AWD compatibility.

This transmission is identified by Manufacturer’s Part Number GS6L804X4L4 and Summit Racing Part Number GES-GS6L804X4L4. These identifiers help LS swap builders, GM performance shops, 4WD builders, restoration shops, custom vehicle shops, mechanics, service departments, transmission installers, and drivetrain specialists confirm the correct Gearstar transmission before ordering.

The GM 6L80E platform gives buyers a 6-speed electronic automatic transmission foundation for compatible LS engine applications. Its 6-speed overdrive layout supports strong acceleration, improved gear spacing, and cruising performance when properly matched to the vehicle, engine output, converter, axle ratio, tire size, electronic controls, and drivetrain setup.

The four-wheel-drive/all-wheel-drive application detail is one of the most important fitment points for this transmission. Buyers should confirm transfer case compatibility, output configuration, driveshaft layout, mount location, crossmember position, and electronic-control requirements before purchase.

The LS engine compatibility note is also essential. Buyers should confirm the exact LS engine application, crankshaft/flexplate requirements, converter setup, starter compatibility, controller compatibility, wiring requirements, and calibration needs before ordering.

Because the provided product details are limited, buyers should confirm all included components before purchase, including torque converter inclusion, flexplate inclusion, controller inclusion, wiring harness inclusion, cooler inclusion, fluid inclusion, dipstick inclusion, transfer case-related requirements, sensors, yoke or output details, and installation hardware.

Fitment and Application Details

The Gearstar GS6L804X4L4 6L80E automatic transmission should be matched carefully to the intended vehicle, LS engine, electronic-control system, torque converter, transfer case, and driveline setup before ordering. Automatic transmission fitment can vary by engine platform, drivetrain layout, output configuration, transfer case, crankshaft spacing, flexplate, converter bolt pattern, starter setup, electronic-control system, transmission mount, crossmember position, driveshaft length, cooler routing, and fluid requirements.

This transmission is listed as a GM 6L80E 4WD/AWD 6-speed overdrive automatic transmission designed for LS engines. Buyers should confirm the exact LS engine application, transfer case compatibility, flexplate setup, converter bolt pattern, crankshaft pilot fitment, starter compatibility, wiring requirements, controller requirements, and 4WD/AWD driveline configuration before purchase.

Important fitment details to verify include vehicle year, make, model, LS engine compatibility, GM 6L80E transmission compatibility, 4WD drivetrain layout, AWD drivetrain layout, transfer case compatibility, output shaft configuration, torque converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, starter fitment, transmission controller requirements, wiring harness requirements, electronic connector compatibility, throttle-position input, speed signal compatibility, lockup-control setup, transmission mount location, crossmember position, front and rear driveshaft requirements, yoke or flange compatibility, shifter compatibility, cooler line routing, fluid specifications, dipstick setup, and installation hardware.

Because the 6L80E is an electronically controlled 6-speed automatic transmission, buyers should confirm controller, wiring, sensor, throttle-position, speed-signal, lockup-control, and calibration requirements before installation.

The exact included components should be confirmed before purchase. Buyers should verify whether the transmission includes the torque converter, flexplate, transmission controller, wiring harness, cooler, cooler lines, fluid, dipstick, transfer case-related parts, yoke, mount, or other installation parts.

For a complete installation, additional components may be required, including a torque converter, flexplate, transmission controller, wiring harness, cooler, cooler lines, transmission fluid, dipstick, shifter components, transmission mount, crossmember hardware, transfer case components, driveshaft/yoke components, sensors, seals, and vehicle-specific installation hardware.

Build Quality and Reliability

The Gearstar Performance Transmission GS6L804X4L4 is built for buyers who need a Level 4 GM 6L80E automatic transmission for compatible LS engine applications. Its combination of a 6L80E platform, 4WD/AWD configuration, 6-speed overdrive design, and LS engine compatibility makes it especially relevant for LS-powered trucks, SUVs, off-road builds, custom 4WD projects, AWD performance builds, and modern GM drivetrain swaps.

The Level 4 designation gives this transmission strong appeal for buyers looking for a performance-oriented build level rather than a basic replacement unit.

The 6-speed overdrive configuration supports improved gear spacing, responsive acceleration, and highway cruising performance when matched correctly with the right torque converter, controller, axle ratio, tire size, vehicle weight, and drivetrain layout.

The 6L80E platform is commonly selected for modern LS-based projects where electronic control, 6-speed operation, and overdrive drivability are important. Proper setup is essential because transmission performance depends on correct electronics, converter choice, cooler capacity, transfer case compatibility, fluid selection, and drivetrain geometry.

Because this is a specialized automatic transmission, buyers should confirm converter selection, flexplate compatibility, electronic controls, cooler setup, shifter compatibility, transfer case fitment, transmission mount, crossmember, driveshaft requirements, yoke or flange setup, and fluid type before installation.

What Makes This Transmission a Strong Choice

The Gearstar Performance Transmission GS6L804X4L4 is a strong choice for buyers who need a GM 6L80E 6-speed overdrive automatic transmission designed for compatible LS engines and 4WD/AWD applications.

The 6L80E platform gives builders a modern GM electronic 6-speed automatic transmission foundation.

The Level 4 build designation makes it appealing for performance-focused applications.

The 4WD/AWD configuration helps match this transmission to compatible four-wheel-drive or all-wheel-drive driveline layouts.

The LS engine compatibility makes this transmission highly relevant for LS swap builders and GM performance projects.

The 6-speed overdrive setup supports performance driving, low-speed control, and highway cruising when properly configured.

The exact GS6L804X4L4 manufacturer part number and GES-GS6L804X4L4 Summit Racing part number support accurate product identification before ordering.

Ideal Buyers and Use Cases

The Gearstar Performance Transmission Automatic Transmissions GS6L804X4L4 is ideal for LS swap builders, GM performance builders, 4WD truck builders, AWD performance builders, off-road builders, restoration shops, custom vehicle shops, mechanics, transmission installers, service departments, and drivetrain specialists who need a compatible 6L80E overdrive automatic transmission.

It is suitable for compatible applications requiring a GM 6L80E, four-wheel-drive or all-wheel-drive configuration, 6-speed overdrive design, LS engine compatibility, and Level 4 transmission build.

This product is useful for LS-powered trucks, SUVs, 4WD conversions, AWD performance projects, restomods, off-road builds, custom drivetrain installations, and vehicles where electronic 6-speed overdrive transmission control is required.

It is also a practical choice for professional installers confirming required supporting components such as the torque converter, flexplate, controller, wiring harness, cooler, cooler lines, transmission fluid, dipstick, sensors, transfer case setup, mount, crossmember, driveshaft/yoke setup, shifter compatibility, and installation hardware.

The best buyer for this transmission is someone who can confirm the LS engine fitment, 6L80E electronic-control requirements, 4WD/AWD driveline layout, transfer case compatibility, converter setup, flexplate requirements, and supporting installation components before ordering.

Technical Specifications

Ordering Support and Fitment Guidance

Before ordering the Gearstar Performance Transmission Automatic Transmissions GS6L804X4L4, confirm that the transmission matches your LS engine, vehicle layout, electronic-control setup, transfer case, and drivetrain requirements.

Important details to verify include vehicle year, make, model, LS engine compatibility, GM 6L80E compatibility, 4WD drivetrain layout, AWD drivetrain layout, transfer case compatibility, output shaft configuration, torque converter requirements, flexplate compatibility, converter bolt pattern, crankshaft pilot fitment, starter compatibility, controller requirements, wiring harness requirements, electronic connector compatibility, throttle-position input, speed signal, lockup-control setup, transmission mount location, crossmember position, front and rear driveshaft requirements, yoke or flange setup, shifter compatibility, cooler line routing, fluid requirements, dipstick setup, and installation hardware.

The available product details identify this unit as a GM 6L80E 4WD/AWD 6-speed overdrive automatic transmission designed for LS engines and a Level 4 build, but they do not confirm whether the torque converter, flexplate, controller, wiring harness, cooler, fluid, dipstick, transfer case-related parts, yoke, or other installation components are included. These details should be verified before purchase.

Our team can help confirm compatibility using the GS6L804X4L4 part number, vehicle details, LS engine setup, 6L80E requirements, converter information, transfer case setup, electronics, and drivetrain layout before ordering.

Frequently Asked Questions

What is the Gearstar GS6L804X4L4 transmission?

The Gearstar GS6L804X4L4 is a GM 6L80E 4WD/AWD 6-speed overdrive automatic transmission designed for compatible LS engines. It is listed as a Level 4 transmission.

Is this a 6L80E transmission?

Yes. The product description identifies this unit as a GM 6L80E automatic transmission.

How many gears does this transmission have?

This transmission is listed as a 6-speed overdrive automatic transmission.

Is this transmission for 4WD or AWD applications?

Yes. The product description lists this unit for four-wheel-drive/all-wheel-drive applications. Buyers should confirm transfer case, output configuration, driveshaft, and mount requirements before ordering.

What engine style is this transmission designed for?

This transmission is designed for compatible LS engines. Buyers should confirm the exact LS engine, flexplate, converter, starter, controller, and wiring requirements before purchase.

What does Level 4 mean on this transmission?

The product description lists this unit as Level 4. Buyers should confirm the exact Level 4 build details, power suitability, and included components before ordering.

Does this transmission include a torque converter?

Torque converter inclusion should be confirmed before ordering because it is not specified in the provided product details.

Does this transmission include a controller or wiring harness?

Controller and wiring harness inclusion should be confirmed before purchase. The 6L80E is electronically controlled, so buyers should confirm electronic-control requirements before installation.

Does this transmission include a cooler, fluid, or dipstick?

Transmission cooler, fluid, and dipstick inclusion should be confirmed before purchase because these details are not specified in the provided product information.

Is this transmission lockup compatible?

Lockup compatibility should be confirmed before ordering. Electronic 6-speed transmission installations require careful converter, controller, wiring, and calibration planning.

Is this a complete installation kit?

Included components should be confirmed before ordering. Buyers should verify whether the transmission includes the torque converter, flexplate, controller, wiring harness, cooler, cooler lines, fluid, dipstick, transfer case-related parts, yoke, mount, or other installation hardware.

What part number should I use to confirm compatibility?

Use GS6L804X4L4 as the main manufacturer’s part number. The GES-GS6L804X4L4 Summit Racing part number can also help confirm product identity.

Who is this transmission best for?

This transmission is best for LS swap builders, GM performance builders, 4WD truck builders, AWD performance builders, off-road builders, custom vehicle shops, mechanics, transmission installers, and drivetrain specialists who need a compatible GM 6L80E 4WD/AWD 6-speed overdrive automatic transmission designed for LS engines.