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

Common Problems and Solutions for the Aisin AS69RC Transmission The Aisin AS69RC is one of the toughest heavy-duty transmissions available in modern Ram trucks, designed to handle extreme torque and heavy towing. You’ll find this transmission most commonly in 2013–2018 Ram 3500, 4500, and 5500 models equipped with the 6.7L...

Picking the Right Speedometer for Your Vehicle In our 20+ years of building transmissions at Monster, we’ve seen every combination of engines, gears, and tires you can imagine. And while most folks focus on horsepower and torque, one critical component often gets overlooked: the speedometer. You might not think much...

The Importance of Flushing or Replacing Your Transmission Cooler Lines When Replacing a Transmission In our 20+ years of building and rebuilding transmissions, we’ve seen thousands of units come across our benches. Some failures are the result of hard miles, some are due to poor maintenance, and others trace back...

The Importance of Programming Your 6L80E Transmission Before Driving It At Monster Transmission, we’ve built and shipped thousands of GM 6L80E units. One rule saves more installs than any other: do not drive the vehicle until the transmission is programmed to the VIN and a relearn is performed. The 6L80E...