4L80E Transmission Common Problems Despite its name, the 4L80E is not an upgrade to its GM counterparts. Introduced alongside the original 4L60 in the early 1990s, the 4L80E is designed for large trucks and is designed as a heavy-duty unit rather than a transmission for smaller cars or even some...

Common 6L90E Transmission Problems and How Monster Fixes Them The 6L90E transmission fills a much-needed duty gap between the versatility of the 4L series and the Allison variety. All previous GM transmissions were based on hydraulic controls, with more electrical aspects with each upgrade, but this unit was developed as...

10R80 Transmission Issues: Common Problems and How to Fix Them Beginning in the mid-2010s, Ford introduced the 10R80 transmission, a significant advancement in their lineup. This transmission features a sophisticated 10-speed automatic system that enhances performance and efficiency. Key improvements include using advanced materials and engineering techniques to create a...