- Made from 9310 Vacumelt Steel Billets
- Includes late Teflon-lined bushing installed
- Designed for GM Allison 4WD Performance applications
- Highly Recommended for Higher HP and Torque applications
- Shafts are Black Oxided to reduce Corrosion and Ease of Identification
- The Best Shafts on the market for Allison High Performance Transmissions
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