Conversion U-Joints

When a driveshaft and yoke don’t share the same series size, a standard U-joint will not match both ends. That’s where a conversion U-joint comes in, it’s built with two different series sizes in one joint so mismatched ends can connect correctly.

IEDLS conversion U-joints cover common combinations like 1310 to 3R, 1310 to 1350, 1350 to 1330, and Mopar-related conversions like 7260 and 7290 pairings, with both greaseable and solid options depending on the application.

Since 1981 • Ontario & Corona, CA • Nationwide shipping

Built for Series Mismatches Without Changing Both Ends

Conversion U-joints are used when one end of the driveline is one series size and the other end is a different series size. Instead of changing yokes or rebuilding multiple components, a conversion joint provides the correct cap sizing on each side so both ends can mate properly.

This category includes greaseable conversion joints for popular mix-and-match scenarios like 1310 to 3R, 1310 to 1330, and 1310 to 1350, along with solid conversion joints for combinations like 1310 to 7260, 1330 to 7290, and 1330 to 3R. The correct choice depends on the conversion pair and whether the build calls for greaseable or solid design.

Common reasons people use conversion U-joints:

  • Connect two different series sizes without swapping both yokes
  • Support a partial upgrade on one end, like stepping up to 1350 on one side
  • Solve GM 3R to 1310 or 1330 mismatches
  • Handle Mopar-related sizing differences like 7260 and 7290 conversions
  • Choose greaseable vs solid based on preference and application needs

Conversion U-Joint Products

IEDLS conversion U-joints cover common driveline mismatch pairings, including 1310 x 3R (greaseable), 1310 x 1350 (greaseable), 1350 x 1330 (greaseable), 1310 x 7260 (solid), 1330 x 7290 (solid), 1330 x 3R (solid), and 1310 x 1330 (greaseable). These options are designed for cases where the two ends do not share the same series size but still need a proper series-specific fit on both sides.

Always match the listing’s Fits line to the two series sizes you are connecting, and confirm whether the listing is greaseable or solid before ordering.

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