Monster Transmission Blog: Transmission Tech, Upgrades & How-To Content

How to Know If Your 4L80E Transmission Needs Replacing or Rebuilding The 4L80E is known for being one of the strongest automatic transmissions General Motors has ever produced. Built as a heavy-duty, electronically controlled evolution of the legendary TH400, the 4L80E can handle serious power and torque, making it a...

Top 5 Mistakes When Installing a 700R4 Transmission The 700R4 is one of the most popular automatic transmissions for street and performance builds. It's a solid overdrive option that works great in everything from classic muscle cars to daily-driven trucks. But like any upgrade, the installation process can make or...

6L80E vs 4L80E: What’s Best for Your LS Swap? An LS engine swap can breathe new life into everything from muscle cars and street rods to off-road rigs and daily drivers. But once the engine’s picked out, there’s another big decision to make: Which transmission should you pair with your...

Can Your Stock 6L80E Handle Big Horsepower Gains? The GM 6L80E transmission is one of the most commonly used 6-speed automatic transmissions in modern performance and towing applications. Found in vehicles ranging from the Chevy Camaro to Silverado trucks, the 6L80E was built to deliver strong, smooth shifting in vehicles...