Product Summary

Universal Fit, Single Joint Universal Joint Style

  • Features needle bearing u-joints
  • They have full compliment bearings
  • Made of the highest quality for racing
  • Features Forged Vanadium steel yokes and u-joint
  • There is a 3/4" DD on one end and a 1" DD on the other

Key Specs

MFG. Part #401-51920
BrandSweet Manufacturing

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As featured on Classic Truck’s Week to Wicked. Watch the transformation here!

Dont jeopardize your safety with inferior quality steering components. Speedway offers only the finest steering U-joints available. Made by Sweet Manufacturing. These steering universal joints are 3.875 inches long and 1.375 inches in diameter. 

  • Full compliment bearings
  • Forged Vanadium steel yokes and u-joint
  • Highest quality for racing
  • Features needle bearing u-joints
  • U-Joint=3.875" L x 1.375" D
Learn more about u-joints and steering systems by reading our tech article. U-Joint Selection and Design.

Note: GM columns measure slightly less than 1" while IDIDIT and Flaming River columns measure a true 1".  DO NOT interchange these u-joints.

Item Details

GM Column/Universal
3/4" Double D to 1" Double D


When purchasing U-Joints, 3 easy steps will help ensure that they will be correct for your application.

Be sure to measure the diameter of the shaft and count the number of splines on the shaft. Some shafts have a blank spot ground on one side. To get the correct number of splines, use a flat edge and cover the blank half of the shaft through the diameter and count the splines on the other half. Multiply that number by 2, thus giving you the total number of splines on the full circumference of the shaft.

Choose which shaft type best suits your application: 3/4" weld on, 3/4" DD or 1" DD.

With these two pieces of information at hand, refer to our chart to find the appropriate part number of the u-joint for your specific application.


MFG. Part #401-51920
BrandSweet Manufacturing
Universal Joint StyleSingle Joint
End #13/4" DD
End #21" DD GM OEM
Spline CountNo splines
Spline EndNo Splines
Overall Length3.75"
Outside Diameter1.355"
Max Operating Angle30 °
Set Screw IncludedNo
Material TypeSteel
FinishBlack Oxide
Sold in QuantityEach
NotesExact measurement of end #2 measurement is .982"