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A heavy-duty, purpose-built transmission gearset — the only dog engagement solution of its kind developed specifically for the Tremec TKX platform.
Designed for high-horsepower motorsport use, this gearset delivers uncompromising strength, fast shifts, and race-proven durability.
5 Forward Dog Engagement Gears
(Optional 4-Speed Dog Engagement with OEM 5th Gear)
Dog Engagement Reverse Gear
Input Shaft Spline Options
26-Spline (Standard)
29-Spline (Optional)
Input Shaft Compatibility
GM
Ford
Individually removable gears for simplified servicing and maintenance
Helical-cut extreme-duty gear design for increased strength and smoother engagement
7mm-thick dog rings for maximum durability under aggressive shifting
Heavy-duty chromoly shift forks
Fully proprietary Speedtek Auto Racing design
1️⃣ 2.70
2️⃣ 1.90
3️⃣ 1.30
4️⃣ 1.00 (Direct Drive)
5️⃣ 0.85 (Short) or 0.70 (Long)
🔄 Reverse: 3.00
Currently in the design phase
Design completion expected end of February
Production scheduled to commence March–April
First production batch estimated Q3–Q4 2026
(Timelines are estimates and subject to change due to ongoing development and testing.)
⚠️ Pre-Orders are strictly non-refundable.
We are pushing development at full speed to deliver a world-class, race-ready product worthy of the Speedtek name.
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