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

GM 8L90 / 8L90E Transmission: Problems, Fixes & Monster Upgrades The GM 8L90E transmission is one of General Motors’ most advanced automatic gearboxes, designed to bridge the gap between the 6L80 and heavy-duty platforms. Found in high-performance cars and full-size trucks, the 8L90 delivers quick shifts, improved fuel economy, and...

Transmission Overheating: Causes, Warning Signs, and How to Prevent Failure Transmission overheating is one of the most common—and most misunderstood—causes of automatic transmission failure. At Monster Transmission, we regularly see units destroyed by heat long before mileage alone should have caused issues. This guide explains what causes transmission overheating, how...

Transmission Slipping: Causes, Costs, and When Failure Is Imminent If your vehicle feels like it’s revving without moving, hesitating between gears, or flaring on upshifts, you’re likely dealing with transmission slipping. This is one of the most serious symptoms a transmission can show—and one that almost always indicates internal damage...

10L80 vs 10R80 Transmission: GM vs Ford 10-Speed Breakdown The 10L80 (GM) and 10R80 (Ford) transmissions are often grouped together — and for good reason. They were co-developed by General Motors and Ford as part of a joint 10-speed automatic program. But here’s the part most owners don’t realize: while...