It is possible to come across car builds that have u joints of different sizes. U-joint sizes are classified by a series number.Each series has a very specific cap diameter and overall joint width. Normally, the larger the U-Joint the stronger it is.
The 1330 to 1350 U-Joint is a mix of two different series specifications on the same u-joint so that that different sized yokes and driveshafts can be connected. The strength of the u-joint depends on several factors, material, design, the presence of a grease fitting, cap size, etc. Take note that the u-joint is only as strong as the smallest series number.
The 1330 to 1350 U Joint cross width is 3.625 (3 5/8”) on both sides, while the cap diameters are different. 1 1/16″ on the 1330 side and 1 3/16″ on the 1350 side.
Adapts Driveline Components
1330 series to 1350 series
There Are Two Different 1330 Series U-Joints
Check cap diameter and u-joint width to ensure proper fit
Includes
Conversion joint
Two outer snap rings
Grease fitting
1330 Ends
• 1.125″ cap diameter
• 3.625″ outside of cap to outside of cap width
1350 Ends
• 1.188″ cap diameter
• 3.625″ outside of cap to outside of cap width
Other Conversion Joints
1.062″ 1330 to 1350 – U1647
1.062″ 1310 to 1350 – U1646
1.125″ w/inside clips to 1350 – U1645