4-2-669 Flange Yoke 1550 Series with 4 x 0.512 in Holes 3.750 in Male Pilot
Technical Data
The 4-2-669 Flange Yoke is engineered for strength and reliability in heavy-duty driveline systems. Designed for 1550 series U-joints, it features a 3.750" male pilot and four 0.512" bolt holes for a secure, vibration-free connection. Built from forged steel and precision-machined, this yoke provides exceptional durability and alignment, making it ideal for trucks, SUVs, and commercial vehicles operating under high-stress conditions.
Upgrade your heavy-duty driveline with the 4-2-669 Flange Yoke – precision fit, forged strength, built to last.
Features and Benefits
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Heavy-duty forged steel construction for maximum durability
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Precision-machined for smooth operation and reduced vibration
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Corrosion-resistant finish ensures long service life
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Designed for demanding driveline applications
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OEM-level reliability for heavy trucks and off-road use
Technical Specifications
| Specification | Value |
|---|---|
| Series | 1550 (1.375 in x 4.964 in) |
| Outside Diameter (OD) | 5.774 in (146.660 mm) |
| Male Pilot Diameter | 3.750 in (95.25 mm) |
| Centerline of Joint to Flange Face (H) | 2 in (50.8 mm) |
| Horizontal Center to Center (X) | 3.053 in (77.546 mm) |
| Vertical Center to Center (Y) | 3.639 in (92.431 mm) |
| Bolt Circle Diameter (Z) | 4.750 in (120.65 mm) |
| Bolt Hole Size | 0.512 in |
| Hole Count | 4 |
| Warranty | 1 Year |
What's Included
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1 x 4-2-669 Flange Yoke (1550 Series)
REVIEWS
Solid build quality and perfect fit. The forged steel feels heavy-duty and reliable.
James R.
Dallas, TX
Installed on my truck with no issues. Smooth operation and zero vibration.
Daniel P.
Phoenix, AZ
Great replacement part, much stronger than the stock yoke. Highly recommend for heavy-duty use.
Victor L.
Denver, CO
Specifications
Fitment Data
• Engineered for precision compatibility with high-performance builds.
• Tested under extreme mechanical stress for guaranteed structural integrity.
Use the Riot Vehicle Finder to verify exact sub-model compatibility.
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