3103-26 Spicer 2-3-11731X Nissan 1310 Transmission yoke fits most automatic transmissions in the 240SX, 300ZX and Hard Body pick up trucks 26 Splines

Nissan's 240SX, 300ZX, and Hardbody pickup trucks left the factory with a staked (non-serviceable) U-joint at the transmission output. The 3103-26 replaces that staked assembly with a conventional 1310-series snap-ring yoke, enabling field replacement of the U-joint without requiring transmission removal or specialized staking tools.

• 24/26-spline x 1.115" PD -- unique Nissan specification; not interchangeable with Spicer domestic 26-spline
• 1.495" hub OD -- close to 1.500" standard but confirm tailshaft seal bore before installation; the 0.005" difference can cause seal contact issues on some seal brands
• 6.047" C-to-end with 0.390" bore depth -- bore pilots onto output shaft bearing retainer
• Cross-reference: Spicer 2-3-11731X covers many overlapping Nissan applications
• Staked OEM joints are available as factory service parts but require a press and specialized tools; this conversion eliminates that need

Tip: after installing the new yoke and 1310 U-joint, drive 50--100 miles and then inspect the snap-ring groove alignment. Nissan output shafts occasionally have small burrs in the spline run-out area that can shift the yoke axially under initial loading, partially unseating the snap ring. A brief re-torque inspection at the grooves confirms seating.