Speedmaster®
GM Turbo 400 TH400 8620 Steel Output Shaft - Standard Length
Product Information
Overview
Speedmaster one-piece 8620 Steel output shafts are the perfect upgrade to improve the performance of your automatic transmission. These durable output shafts can withstand power level increases in high-horsepower vehicles.
Specs
| Brand: | Speedmaster |
| Part Number: | PCE684.1002 |
| Part Type: | Automatic Transmission Output Shaft |
| Output Shaft Material: | 8620 Steel |
| Quantity: | Sold Individually |
| Notes: | 1,250 Max Horsepower Rating |
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.