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

4L60E vs. 700R4 Transmission: What’s the Difference? David compares the differences between a 4L60E and a 700R4 Transmission. From a visual standpoint, the 700R4 has a case connector on the driver side of the unit for lockup, along with a governor cover. These units feature a hookup to a TV cable on the...

6L80E Transmission Issues: Common Problems and Proven Solutions The 6L80E transmission is one of GM’s most widely used and versatile gearboxes, bridging the gap between the 4L series and heavy-duty Allison units. Designed as an electro-hydraulic 6-speed automatic, it was built to handle vehicles up to 8,600 lbs GVWR and...

68RFE Transmission Issues: Common Problems and How to Fix Them The 68RFE transmission was introduced in 2007 with the Ram and Pickup Lines, having the benefit of modified internal components to handle increased torque and revised gear ratios for larger applications. Monster provides a wide variety of builds for this...

4L60E Transmission Common Problems Beginning in the late 90s and the early 2000s, GM began to phase in a new variant on the 4L60E, the 4L65E. This transmission introduced a new set of 5-pinion planetary gears as well as a newly improved and stronger output shaft. This gave the transmission...