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

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...

A618 / 47RE / 48RE: Common Issues, Proven Fixes & Full Installation Guide Dodge Ram • 5.9L Cummins • 2WD/4WD • StreetMonster & SportMonster Builds • Includes Kick-Down, TTVA & Band Adjustments Why this guide? The A618 family (47RH/47RE/48RE) is simple, strong, and everywhere—but age, heat, and calibration issues cause...

6L80 / 6L90 TEHCM Guide: Common Failures, Tag IDs, and Year Differences GM Trucks & SUVs • Camaro / Corvette • Cadillac • 6L80 / 6L90 • Monster TEHCM Reference The 6L80 and 6L90 TEHCM (Transmission Electro-Hydraulic Control Module) is the brains and hydraulics of your GM six-speed automatic. It’s...