AODE, 4R70W, 4R75W Transmission

Direct Drum Drive Shaft – Sonnax Heavy Duty Intermediate Stub Shaft

Part No.: 76670A-01

OE Part No.: F8AZ-7F351-AA

Intermediate stub shaft failure is a common issue in Ford AODE, 4R70W, 4R70E, 4R75W, and 4R75E transmissions—especially in high-power or abusive applications.

The Sonnax 76670A-01 heavy duty intermediate stub shaft is engineered for maximum strength and durability. It’s heat-treated, cryogenically processed, and shot-peened to resist fracture, making it the strongest drop-in upgrade available for AODE/4R70W units.

Key Features

• Manufactured from 300M ultra-high-strength steel
• Shot-peened to prevent micro-cracking
• Rolled splines for enhanced strength and long-term durability