June 16, 2022

Improve TH400 Performance, Consistency & Safety with the Sonnax Smart-Tech Drum Module

Presented by Sonnax

When drag racing a GM TH400 transmission, it’s critical to upgrade the forward and direct drums. The key is not only stronger, more durable parts, but improving efficiency for better performance, consistency and safety. Watch this video to learn about OE drum design flaws and how to overcome them with the Sonnax Smart-Tech drum module — the first and only upgrade to optimize Turbo 400 drum function with a unique configuration of both lighter and stronger components.

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