Speedmaster®
GM Powerglide Transmission Planetary Gear Set - Short
Product Information
Overview
Speedmaster planetary gear sets are ideal for modern big-displacement engines. Speedmaster planetary gear sets have an extremely stout output shaft. The forged output shaft from the Speedmaster planetary gear sets offer excellent torsion memory, but it is near impossible to break! Speedmaster planetary gear sets are available in long and short versions. Speedmaster only offers planetary gear sets provide superior torque output for modern high-output motors.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE550.1003 |
| Part Type: | Automatic Transmission Gear |
| Gear Set Type: | Planetary |
| Gear Set Material: | 4340 Steel |
| Gear Type: | Straight Cut |
| Length (in.): | 18 in. |
| Shaft Diameter (in.): | 1.3750 in. |
| First Gear Ratio: | 1.80:1 |
| Second Gear Ratio: | 1.00:1 |
| Quantity: | Sold as a Kit. |
| Notes: | Short style, big TH400 32-spline output shaft. |
Description
To be used with PCE598.1004 and PCE598.1003
Warranty Information
12-Month Limited Worldwide Warranty
Prop 65 Warning
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Installation Guide
Our AI assistant generates a step-by-step guide for this product — covering installation, maintenance, and troubleshooting.
This AI-generated guide is for general reference only and does not constitute official Speedmaster product documentation. Always verify fitment, torque specifications, and safety requirements before installation.