Product Summary

Universal Fit, Single Joint Universal Joint Style

  • One end has a 1" DD and the other is 3/4" round
  • Features forged vanadium steel yokes and u-joint
  • The black oxide coating offers great corrosion protection
  • Overall length measures 3.75" with an O.D. measuring 1.355"
  • These steering universal joints have a 3/4" round weld-on end

Key Specs

MFG. Part #401-50620
BrandSweet Manufacturing

Need To Know

Free Shipping on Orders Over $149

Shipping Policies & FAQs

Quick and Easy Returns

Return Policy


Don't 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 have a 3/4 round weld-on end.

  • Full complement 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
1" Double D

1" DD on this U-joint is undersized and application-specific to the 1" DD on an OEM GM column.  Therefore, this unit is not applicable to an aftermarket 1" DD column such as the Ididit or Flaming River applications which measures out to the full 1.000" DD application.


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 ujoint for your specific application.


MFG. Part #401-50620
BrandSweet Manufacturing
Universal Joint StyleSingle Joint
End #11" DD GM OEM
End #23/4" Round
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
Notes1" DD IS .985 ID