Automatic Transmission Planetary Gear

Our 1.58 Ratio Bolt-Together Powerglide 9310 27 Spline Steel Planetary Set provides the strongest and lowest friction gear set on the market. Features Steel-backed bi-metal washers and a PTFE layer to reduce heat.

The Bolt-Together 1.69 Ratio Powerglide Gear replaces the planetary gear that came with your TCI Bolt-Together Planetary.

The Bolt-Together 1.80 Ratio Powerglide Gear replaces the planetary gear that came with your TCI Bolt-Together Planetary.

The Bolt-Together 1.98 Ratio Powerglide Gear replaces the planetary gear that came with your TCI Bolt-Together Planetary.

The TCI Bearing Kit replaces the bearings in our TCI Bolt-Together Planetary Assemblies.

The TCI Gear Axle Kit replaces the gear axles in our TCI Bolt-Together Planetary Assemblies.

The TCI Gear Bearing Kit replaces the gear bearings in our TCI Bolt-Together Planetary Assemblies.

This Planetary for TH400 Transmissions is a great way to ready your TH400 for a bracket racing application without swapping to a Powerglide for a lower (numerically) gear.

This Low Gear Planetary for TH400 Transmissions is a great way to gain more gear reduction for better low-end response and torque without sacrificing your highway cruising RPM/Economy. Features a 2.75 first gear instead of OEM 2.48.

This Low Gear Planetary for TH400 Transmissions is a great way to gain more gear reduction for better low-end response and torque without sacrificing your highway cruising RPM/Economy. Features a 2.97 first gear instead of OEM 2.48.