Sonnax T33-ALFY-04 – 1330 Series 6-Bolt Aluminum Adapter Flange Yoke Kit
The Sonnax T33-ALFY-04 is a high-performance 6-bolt aluminum adapter flange yoke kit designed for Ford Mustang driveshaft conversions and custom driveline applications. Manufactured from high-strength 6061-T6 aluminum, this precision-machined flange yoke provides a durable connection between a factory-style pinion flange and a 1330 series U-joint.
Designed for 2005–2019 Ford Mustang applications equipped with a 95mm pinion flange bolt circle, this adapter allows the factory CV joint to be eliminated in favor of a conventional U-joint connection. When combined with the appropriate slip and stub assembly, it can also help eliminate the factory rubber flex joint and convert a two-piece driveshaft into a one-piece driveline.
This adapter is also an excellent solution for custom builds, drivetrain swaps, and hot rod applications requiring a connection between modern drivetrain components and traditional driveshaft assemblies.
Product Specifications
| Specification | Details |
|---|---|
| Manufacturer | Sonnax |
| Manufacturer Part Number | T33-ALFY-04 |
| Material | 6061-T6 Aluminum |
| U-Joint Series | 1330 |
| Bolt Count | 6 |
| Bolt Hole Diameter | 0.438" |
| Bolt Circle Diameter | 95mm |
| Flange Outside Diameter | 4.720" |
| Pilot Diameter | 4.457" |
| Pilot Type | M |
| Flange Face to U-Joint Centerline | 3.440" |
| Weight | 1.830 lbs |
Vehicle Applications
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Ford Mustang Automatic (2005–2014) – 95mm Pinion Flange
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Ford Mustang Manual (2005–2019) – 95mm Pinion Flange
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Custom Drivetrain Conversions
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Street Rod and Hot Rod Applications
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Compatible Engine and Transmission Swaps
Features & Benefits
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High-strength 6061-T6 aluminum construction
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Compatible with 1330 series U-joints
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Precision-machined for accurate fitment and balance
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6-bolt mounting configuration with 95mm bolt circle
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Allows elimination of factory CV joint connections
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Helps eliminate rubber flex joints when used with appropriate driveline components
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Supports conversion from a two-piece to a one-piece driveshaft
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Ideal for performance upgrades, custom builds, and drivetrain swaps
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Designed to improve driveline durability and reduce future maintenance
Kit Includes
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(1) Aluminum Adapter Flange Yoke
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(6) Mounting Bolts
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(6) Washers
Important Fitment Information
Verify pinion flange bolt circle diameter, flange outside diameter, pilot diameter, bolt hole diameter, and U-joint series before ordering.
Important: This adapter is designed for Ford Mustang applications with a 95mm bolt circle diameter pinion flange. Not all Mustang model years and transmission configurations use the same flange dimensions.
This adapter is intended for 1330 series U-joints. A complete one-piece driveshaft conversion may require additional components, including the appropriate slip yoke, stub shaft, tubing, and weld yokes.
Custom applications may be possible when all mounting dimensions are compatible. Always verify measurements before purchasing.