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

Common Problems with the 4L60E & 4L65E (and How to Fix Them for Good) GM 4L60E / 4L65E • Trucks, SUVs & Performance Builds • StreetMonster & SportMonster Options • Expert Diagnosis & Permanent Fixes If you drive a GM truck/SUV, F-body, Corvette, or classic with a 4L60E/4L65E swap, you’ve...

6L80 vs 10L80: Which GM Automatic Fits Your Build (and Why We Still Love a Built 6L80) GM’s proven 6-speed (6L80/6L90) vs. the newer 10-speed (10L80): performance, reliability, control systems, swap considerations—and what we do inside a Monster-built 6L80 so it punches way above stock. Browse 6L80E/6L90E Builds Talk to...

10R80 Transmission Swaps: Bringing Modern Performance to Classic Cars Modern 10-speed tech meets old-school power — powered by Monster Transmission The Ford 10R80 transmission has quickly become one of the most popular modern swaps for performance builds — from Foxbody Mustangs to restomod Broncos and classic F-100s. Its fast, adaptive...

6L80 Transmission Rebuild vs Remanufactured: What You’re Really Paying For Chevy • GMC • Cadillac • 6L80 / 6L90 • StreetMonster • SportMonster • TrackMonster Let’s settle the debate: should you rebuild your 6L80, or go with a remanufactured transmission? While a local rebuild might sound cheaper and faster, it...