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Our Products

When it comes to high-performance gear shafts and planetaries, Transmission Specialties offers a range of options to suit your power needs:

  • 4340 Hardened Steel Shafts Rated to handle up to 850 HP with options such as 2518 PG spline, 2519 PG to Turbo with bushing, and 2520 PG to Turbo High Flow.
  • 300M Steel Shafts With a capacity of up to 1300 HP, these shafts (2516M and 2517M) are designed for high-flow applications.
  • NASA Shafts Engineered for aerospace-grade performance, our 2517 NASA and 2517PM NASA shafts are rated to handle 1800 HP and 2500 HP respectively.

Lock-Up Series Torque Converters

For superior lock-up torque converters, we offer billet lock-up series converters designed for various transmissions including 2004R, 700R4, 4L60, 4L60E, 4L80E, and 6L80E. Features include stall speeds from 2800 to 4500 RPM, oversized billet lock-up piston, billet front cover, and furnace brazed fins for durability.

Drum

Our aftermarket drum is specifically designed to accommodate 10 Raybestos thin clutches and steels, featuring an oversized steel clutch hub and matching piston for enhanced performance.

Locking Dipsticks

NHRA-approved locking dipsticks are available in long PG, shorty PG, and T-400 configurations, ensuring secure transmission fluid monitoring.

Deep Aluminum Pans

Increase fluid capacity with our deep aluminum pans, providing an additional 2 quarts and available for PG, T-350, and T-400 transmissions at competitive pricing.

PG Pump

Upgrade to our PG aftermarket cast iron pump with one-piece stator, available with PG or T-400 stator options to fit all ringed or ringless shafts, offering higher volume and pressure for improved transmission performance.

Tailhousing & Yoke

Opt for our rollerized tailhousing and matching yoke combo for enhanced durability and performance, featuring aftermarket PG tail housing with bearing and hardened forged yoke.

PG Shields

Ensure safety with our SFI-approved transmission shield and flywheel shield combo, available in black or silver, and offering reduced combo pricing.

Super 9 Spragless Converter

Experience increased horsepower and ET with our Super 9 Spragless Racing Converter, specifically designed for racecars generating 1000-1300 HP.

4L60E/4L80E Transmission Packages

Our transmission packages are equipped with heavy-duty parts for superior durability, including resized servo and levers, higher pressure for tighter grip, high-flow lube circuit, and more. Rated to handle up to 600 HP and 650 ft/lbs of torque, these packages ensure rock-solid shifts and performance.