GM Performance 8-Speed Automatic Transmission - 4x4 Modified - Land Rover Defender Swap

The GM 8L90 eight-speed automatic, modified by Blackbridge Engineering to be 4x4-ready. It bolts into the Mark X and pairs directly with our custom Mark X transfer case and GM LT1 engine. Offering smooth, high-performance shifting and rugged durability, this 8-speed automatic is designed for those who demand both power and off-road capability.

Key Features:

• 4x4-Ready Modification: Blackbridge Engineering has modified the 8L90 transmission for full 4x4 compatibility, allowing you to harness the power of GM’s performance transmission across a variety of terrains with confidence.
• Seamless Integration: Engineered to bolt directly into your Mark X with our Mark X transfer case and LT1 engine, this transmission eliminates the need for major modifications. Enjoy a factory-like fit and function with maximum reliability.
• High-Performance Shifting: The 8L90 delivers smooth, precise gear changes, with eight well-spaced ratios to optimize both acceleration and fuel efficiency, whether you’re cruising on the highway or tackling tough off-road trails.
• Rugged Durability: Built to handle the high torque of the LT1 engine, the 8L90’s robust design ensures it can handle the most demanding conditions, providing the strength and durability you need for both street and off-road driving.

Transmission Specs:

• Type: 8-speed automatic transmission
• Ratios:
  • 1st: 4.56
  • 2nd: 2.97
  • 3rd: 2.08
  • 4th: 1.69
  • 5th: 1.27
  • 6th: 1.00
  • 7th: 0.85
  • 8th: 0.65
• Max Torque Capacity: 664 lb-ft
• Construction: Lightweight aluminum case with heavy-duty internal components for maximum strength

Ideal for:

• Off-Road Enthusiasts: Modified to be 4x4-ready, this transmission is perfect for those looking to take their Mark X off-road, providing exceptional control and power delivery across rough terrains.
• Street Performance: With eight gears delivering smooth transitions and improved fuel efficiency, the 8L90 is just as at home on the street as it is in the dirt, making it a versatile choice for a wide range of driving styles.
• Custom Builds: Perfect for Mark X builds paired with the LT1 engine and Blackbridge’s transfer case, creating a powerful and fully integrated drivetrain solution.

Compatibility:

• Designed for seamless integration with the GM LT1 engine and Blackbridge’s custom Mark X transfer case, offering a true bolt-in solution for all Mark X models.

Why Choose Blackbridge Engineering’s 8L90 for Mark X:

• 4x4-Ready from the Start: Our modifications ensure the transmission is ready for off-road use, making your Mark X capable of conquering any terrain.
• Plug-and-Play Solution: With direct compatibility with our LT1 engine and transfer case, this transmission installs effortlessly, saving time and eliminating complex modifications.
• Expertly Engineered: Blackbridge Engineering’s attention to detail ensures top-tier performance, reliability, and durability, whether you’re driving on highways or off-road trails.

Upgrade your Mark X with the GM Performance 8L90 8-Speed Automatic transmission, modified by Blackbridge Engineering to be 4x4-ready and fully compatible with our LT1 engine and Mark X transfer case. Experience unmatched power, seamless integration, and rugged performance.

Order now and elevate your Mark X’s drivetrain with Blackbridge Motors.