Speedmaster®

GM TH400 Heavy Duty Racing Transmission Billet Aluminum Direct Drum

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US $604.80 US $711.50
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MPN PCE623.1010 UPC840136559313

Product Information

Overview

This TH400 Billet Aluminum Direct Drum is manufactured specifically for drag racing but also makes a great replacement for the hard to find OEM parts. Drum weights 55% less than the OEM drum.Made from 7075-T6 Billet Aluminum, 36 element Pro Mod Sprag and new large steel outer race to allow the use of more clutches. Used in applications up to 3000 HP.

Specs

Brand:Speedmaster
Part Number:PCE623.1010
Part Type:Automatic Transmission Drum
Transmission Drum Material:Billet Aluminum
Sprag Assembly:36 Element
Quantity:Individually
Notes:Holds up to 10-clutch

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.

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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.