Sonnax 6L80/90 Torque Converter Heavy-Duty Builds Explained

If you're interested in upgrading the torque converter in a GM 6L80 or 6L90 transmission, watch this video. You'll learn about the critical weak points of the stock-size, 300mm units and the difference between performance and heavy-duty converter upgrades. To understand options for good/better/best builds, you'll get a closeup look at key components like the front cover, piston and clutch plates, plus unique features of Sonnax multi-plate performance converter kits - the ultimate way to maximize reliability in JMBX, JMBV, JMDZ and JMDY coded units.
For a quick overview of build options, check out this guide: www.sonnax.com...