Product Summary

8L90

  • Heavy-duty 8L90E 8-speed automatic transmission engineered for high-performance GM and Chevrolet 4x4 applications
  • Level 4 upgrades provide maximum strength, durability, and torque-handling capability for demanding builds
  • Enhanced clutch capacity and upgraded internal components help support high-horsepower and high-torque combinations
  • Performance-calibrated hydraulics deliver quick, crisp shifts and dependable power transfer under load
  • Ideal for lifted trucks, off-road vehicles, towing applications, and high-performance 4x4 builds requiring exceptional reliability
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Key Specs

MFG. Part #GS8L904X4L4
BrandGearstar American Performance
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Made to Order

This custom item will ship when completed

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Gearstar American Performance GS8L904X4L4 Details

The Gearstar 8L90E 4x4 Level 4 Transmission is a premium-performance 8-speed automatic transmission built for Chevrolet and GM four-wheel-drive applications that require exceptional strength, durability, and torque-handling capability. Based on the advanced 8L90E platform, this Level 4 transmission is engineered to support high-horsepower and high-torque combinations while delivering the fast, precise shifts and efficient performance expected from a modern electronically controlled transmission.

Designed for demanding street, towing, off-road, and performance truck applications, the Level 4 package incorporates upgraded internal components, increased clutch capacity, and performance-calibrated hydraulics to withstand extreme operating conditions. Professionally assembled and thoroughly tested, this transmission delivers reliable power transfer, consistent shift performance, and long-term durability for enthusiasts building serious 4x4 trucks and SUVs.

  • Heavy-duty 8L90E 8-speed automatic transmission engineered for high-performance GM and Chevrolet 4x4 applications
  • Level 4 upgrades provide maximum strength, durability, and torque-handling capability for demanding builds
  • Enhanced clutch capacity and upgraded internal components help support high-horsepower and high-torque combinations
  • Performance-calibrated hydraulics deliver quick, crisp shifts and dependable power transfer under load
  • Ideal for lifted trucks, off-road vehicles, towing applications, and high-performance 4x4 builds requiring exceptional reliability

Gearstar American Performance GS8L904X4L4 Specifications

KEY SPECS
MFG. Part #GS8L904X4L4
BrandGearstar American Performance
GENERAL
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