TCI® TH400 2.75/1.57 & 2.97/1.57 6-Pinion Planetary Sets

Two unique planetary sets from TCI® now available for GM TH400 transmissions, providing improved performance and increased take-off power by up to 17 percent

In the world of GM performance enthusiasts and drag racers alike, one of the most important aspects of competition is launch speed. With that in mind, drivetrain experts at TCI® have recently developed two 6-pinion planetary sets to put the engine’s torque to work. Separated into 2.75 1st/1.57 2nd and 2.97 1st/1.57 2nd gear ratios, these two kits can guarantee that you discover the true performance potential of your engine at the strip by increasing take-off power by 10 percent and 17 percent, respectively.

With a 6-pinion rear and 5-pinion front planetary, as well as heavy-duty, CNC-machined billet construction, these planetary sets increase load capacity by as much as 17 percent, thereby giving GM performance enthusiasts more drivetrain durability in the long run. In addition, these lower 1st and 2nd gear ratios significantly increase take-off power for better all-around performance and improve the rpm drop of the engine between gears. Simply put, the TCI® TH400 6-Pinion Planetary Sets will unleash the performance potential of any GM TH400-equipped street or drag racing application.

A perfect combination of durability and street/strip performance, these planetary sets are ideal for any GM performance enthusiast looking to improve acceleration right off the line. For more information about the TCI® TH400 6-Pinion Planetary Sets or any other TCI® product, call us at 1-888-776-9824, or visit us online at www.tciauto.com.

Quick Summary
Product: TCI® TH400 6-Pinion Planetary Sets
Part Number: #227500 (2.75 1st/1.57 2nd); #229700 (2.97 1st/1.57 2nd)

Features & Benefits:
•6-pinion planetary sets improve acceleration & gear transitions in GM TH400-equipped street/strip performance applications
•6-pinion rear, 5-pinion front planetary and CNC-machined billet construction provide 17% increase in load capacity & improve longevity
•Changes 1st & 2nd gear ratios to improve take-off power by up to 17%
•Increased take-off power improves all-around performance and rpm drop of engine between gears