HomeDriveline and Axles > Drive ShaftSKF UJ638 Double Cardan CV Weld Yoke
Part #: UJ638

SKF UJ638 Double Cardan CV Weld Yoke

⚙️ 89 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford, F-350, Bronco, F-150, and F-250
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Overview of SKF UJ638 Double Cardan CV Weld Yoke

The SKF UJ638 is a precision-engineered double Cardan CV weld yoke designed for driveline applications. With a width of 0.686 inches, this component ensures a secure and reliable connection in the drive shaft assembly, specifically compatible with Ford Bronco, F-150, F-250, and F-350 models.

  • Width dimension: 0.686 inches for accurate fitment
  • Double Cardan constant velocity design for smooth driveline operation
  • Weld yoke construction for durable and secure attachment
  • Compatible with Ford Bronco, F-150, F-250, and F-350 vehicles
  • Part number UJ638 for precise identification and replacement

Detailed Product Description

The SKF UJ638 double Cardan CV weld yoke is engineered to maintain driveline integrity by providing a stable connection point within the drive shaft assembly. The 0.686-inch width is a critical attribute that ensures proper alignment and fitment with corresponding components. This yoke is designed to accommodate the angular movement and torque transfer demands of Ford Bronco and F-Series trucks, including the F-150, F-250, and F-350 models. The weld yoke design allows for a permanent, robust connection, reducing the risk of loosening or misalignment during operation.

Applications and Problem Solving

  • Replaces worn or damaged double Cardan yokes in Ford Bronco and F-Series drive shafts
  • Addresses driveline vibrations caused by misaligned or faulty yokes
  • Prevents premature wear of CV joints by maintaining proper alignment
  • Eliminates play or looseness in the driveline assembly
  • Supports smooth torque transfer under heavy load conditions

Installation Notes and Tips

  • Ensure the 0.686-inch width matches the mating components for proper fit
  • Welding should be performed by a qualified technician to maintain structural integrity
  • Inspect surrounding driveline components for wear during installation
  • Use appropriate safety equipment and follow vehicle manufacturer guidelines

Quality Assurance and Warranty

SKF manufactures the UJ638 weld yoke to meet stringent quality standards, ensuring durability and reliable performance in demanding driveline applications. While specific warranty details should be confirmed at the point of purchase, SKF products typically come with manufacturer-backed warranties covering defects in materials and workmanship.

This part fits 89 vehicles. Search below:

YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
1997FordF-3504WD5.8LV8N/Aw/ 133" Wheel Base
1997FordF-3504WD7.5LV8N/Aw/ 133" Wheel Base
1997FordF-3504WDN/Aw/ 136" Wheel Base:
1997FordF-3504WD7.3LV8N/Aw/ 133" Wheel Base
1997FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1996FordF-3504WD7.3LV8N/Aw/ 133" Wheel Base
1996FordF-3504WD5.8LV8N/Aw/ 133" Wheel Base
1996FordF-3504WD7.5LV8N/Aw/ 133" Wheel Base
1996FordF-3504WDN/Aw/ 136" Wheel Base:
1996FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1995FordF-3504WD5.8LV8N/Aw/ 133" Wheel Base
1995FordF-3504WD7.5LV8N/Aw/ 133" Wheel Base
1995FordF-3504WD7.3LV8N/Aw/ 133" Wheel Base
1995FordF-3504WDN/Aw/ 136" Wheel Base:
1995FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1994FordF-3504WD5.8LV8N/Aw/ 133" Wheel Base
1994FordF-3504WD7.5LV8N/Aw/ 133" Wheel Base
1994FordF-3504WD7.3LV8N/Aw/ 133" Wheel Base
1994FordF-3504WDN/Aw/ 136" Wheel Base:
1994FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1993FordF-3504WDN/Aw/ 136" Wheel Base:
1993FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1993FordF-3504WDAutomaticN/A
1993FordF-3504WDManual5.8LV8N/Aw/ 133" Wheel Base
1993FordF-3504WDManual7.5LV8N/Aw/ 133" Wheel Base
1993FordF-3504WDManual7.3LV8N/Aw/ 133" Wheel Base
1992FordF-3504WDN/Aw/ 136" Wheel Base:
1992FordF-3504WDManual7.5LV8N/Aw/ 133" Wheel Base
1992FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1992FordF-3504WDAutomaticN/A
1992FordF-3504WDManual5.8LV8N/Aw/ 133" Wheel Base
1992FordF-3504WDManual7.3LV8N/Aw/ 133" Wheel Base
1991FordF-3504WDN/Aw/ 136" Wheel Base:
1991FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1991FordF-3504WDAutomaticN/A
1991FordF-3504WDManual7.5LV8N/Aw/ 133" Wheel Base
1991FordF-3504WDManual7.3LV8N/Aw/ 133" Wheel Base
1991FordF-3504WDManual5.8LV8N/Aw/ 133" Wheel Base
1990FordF-3504WDN/Aw/ 136" Wheel Base:
1990FordF-3504WDManual5.8LV8N/Aw/ 133" Wheel Base
1990FordF-3504WDN/Aw/ 160" & 168" Wheel Base:
1990FordF-3504WDAutomaticN/A
1990FordF-3504WDManual7.5LV8N/Aw/ 133" Wheel Base
1990FordF-3504WDManual7.3LV8N/Aw/ 133" Wheel Base
1989FordF-3504WDAutomaticN/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1989FordF-3504WDManual5.8LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1989FordF-3504WDManual7.5LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1989FordF-3504WDManual7.3LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1989FordF-3504WDManualN/Aw/ Frt. Shaft Outer Lock Ring, 136" WB & HD 5 Spd. Man. Trans.:
1989FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 3 Joint Shaft & 168" Wheel Base:
1989FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring & 136" WB
1989FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring & 160" Wheel Base:
1989FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 2 Joint Shaft & 168" Wheel Base:
1988FordF-3504WDAutomaticN/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1988FordF-3504WDManual5.8LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1988FordF-3504WDManual7.5LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1988FordF-3504WDManual7.3LV8N/Aw/ Frt. Shaft Outer Lock Ring, 133" WB
1988FordF-3504WDManualN/Aw/ Frt. Shaft Outer Lock Ring, 136" WB & HD 5 Spd. Man. Trans.:
1988FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring & 136" WB
1988FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring & 160" Wheel Base:
1988FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 2 Joint Shaft & 168" Wheel Base:
1988FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 3 Joint Shaft & 168" Wheel Base:
1987FordBronco4WDN/Aw/ Outer Lock Rings:
1987FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 2 Joint Shaft & Part Time Transfer Case
1987FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 2 Joint Shaft & Full Time Transfer Case
1987FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 3 Joint Shaft & Full Time Transfer Case
1987FordF-3504WDN/Aw/ Frt. Shaft Outer Lock Ring, 3 Joint Shaft & Part Time Transfer Case
1987FordF-3504WDManualN/Aw/ Frt. Shaft Outer Lock Ring, 2 Joint Shaft
1987FordF-3504WDManualN/Aw/ Frt. Shaft Outer Lock Ring, 3 Joint Shaft
1986FordBronco4WDN/A
1985FordBronco4WDN/A
1984FordBronco4WDN/A
1983FordBronco4WDN/A
1982FordBronco4WDN/A
1981FordBronco4WDN/AFrom Ser. GJ0,001:
1981FordBronco4WDN/AThru Ser. GJ0,000:
1980FordBronco4WDN/AFrom Ser. GJ0,001:
1980FordBronco4WDN/AThru Ser. GJ0,000:
1979FordBronco4WDN/A
1979FordF-1504WDN/Aw/ 116" Wheel Base & Full Time Transfer Case:
1979FordF-1504WDN/Aw/ 116" Wheel Base & Part Time Transfer Case:
1979FordF-1504WDN/Aw/ 133" Wheel Base & Full Time Transfer Case:
1979FordF-1504WDN/Aw/ 155" Wheel Base & Full Time Transfer Case:
1979FordF-2504WDN/Aw/ 2 Joint Shaft & 1.188" O.D. Brg. Cap Wheel Joints:
1979FordF-2504WDN/Aw/ 3 Joint Shaft & 1.188" O.D. Brg. Cap Wheel Joints:
1979FordF-2504WDN/Aw/ 2 Joint Shaft & 1.375" O.D. Brg. Cap Wheel Joints:
1979FordF-2504WDN/Aw/ 3 Joint Shaft & 1.375" O.D. Brg. Cap Wheel Joints:
1979FordF-3504WDN/AFits universal joint with 2 joint shafts.
1979FordF-3504WDN/Aw/ 3 Joint Shaft:

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.