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Stay up-to-date with the latest in aftermarket transmission performance parts by visiting the TCS Products news and updates section on our site. Whether you’re an enthusiast or a custom auto performance shop, we’re here to support your passion. For personalized assistance, feel free to contact us by phone. Custom auto shops are invited to open an account with us to access exclusive benefits. We proudly offer fast shipping across the US and Canada, ensuring your parts arrive when you need them.

GM 6L80, GM 6L90

TCS 6L80/6L90 1-2-3-4 Billet Piston

If you’re a repeat builder of GM 6L80 or 6L90 transmissions, you’re well aware the 1-2-3-4 clutch piston is a component prone to failing. It’s often the case that the factory piston cracks due to cantilevered stress. A billet piston is a necessary performance upgrade in any high line pressure, tuned, and other performance modified […]

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Common Problems with The TH400 When You’re Pushing Big Power

The TH400 (Turbo Hydramatic 400) is a widely popular unit in drag race, off-road, and street builds. As power and torque figures climb, the factory parts start to show their weaknesses: broken sprags, input shaft failures, and hydraulic inefficiencies that cause parts failure. Upgraded parts for this transmission are necessary for dependable performance. We at […]

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Dodge performance automatic transmission products

The Pitfalls of the Dodge 68RFE and How TCS Parts Solve OEM Weaknesses

The Dodge 68RFE is notorious for comebacks – burnt clutches, weak shafts, and cross-leaking valve bodies. OEM parts don’t hold up under real-world towing scenarios and tuning adjustments, leaving shops to eat the costs. In this case study, we show how TCS’s engineered solutions address design flaws, aiding shops in building transmissions that last longer, […]

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