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

Monster Transmission • Deep-Dive Guide 6L80 Transmission Issues: 10 Common Problems & Monster-Proven Fixes The GM 6L80 (often searched as “6L80” and “6L80E”) is one of the most common modern 6-speeds in trucks, SUVs, and performance cars. It’s strong when healthy—but it has repeatable failure patterns. This guide breaks down...

Rebuilding a Transmission: Why It Fails (And What Actually Works) If you’ve searched for rebuilding a transmission, you’re probably facing one of two situations: Your transmission already failed You’re trying to avoid a full replacement Rebuilding sounds logical — fix what broke, save money, move on. Unfortunately, that logic doesn’t...

6L80 Remote Tuning Device (RTD): Program Your Replacement 6L80 the Right Way If you’re replacing a GM 6L80, the mechanical install is only half the job. The other half is making sure the vehicle can communicate with the transmission so it starts, shifts, and learns correctly. That’s exactly why we...

Choosing the Right Transmission for Towing vs Daily Driving One of the most common—and most expensive—mistakes we see at Monster Transmission is customers choosing the wrong transmission build for how they actually use their vehicle. A transmission that works fine for commuting can fail quickly when towing. Likewise, an overly...