3103-320 – 1310 Transmission & Transfer Case 2-3-10431X Fits the GM transmissions with 32 spline output shaft Turbo 400, TH-400, Super T-10, Richmond, M22, M21, M20, Jericho, 4L85E, 4L80E and confirm dimensions for transfer cases fitment.

The 3103-320 transmission yoke is the connection between the gearbox tailshaft and the front of the driveshaft. It splines onto the transmission output shaft and carries the front u-joint of the driveshaft. For 1310 series applications, the spline count and hub diameter are the two specs that determine whether this part fits your tailshaft correctly.

3103-320 Transmission Yoke — 1310 Series Specs & Tailshaft Fit

The 1310 series covers light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500. The 3103-320 transmission yoke specs: 31/32 X 1.397 spline | 1.886" hub | 5.500" CJ-to-end. Compatible with: Short TH400. Hub diameter determines engagement depth on the tailshaft — if the hub is too short, the splines don't fully engage. CJ-to-end affects driveshaft working length.

After a transmission rebuild or swap, confirm the tailshaft spline count hasn't changed before installing the 3103-320 transmission yoke. Not all 1310 series transmissions use the same output spline across all years and configurations. Count the splines on the actual shaft.

Key Features

• Series: 1310 — light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500
• Spline: 31/32 X 1.397 — must match transmission tailshaft
• Hub dia: 1.886" — determines spline engagement depth
• CJ-to-end: 5.500" — affects driveshaft working length
• Compatible with: Short TH400
• Brand: UDS

Specifications

• SKU: 3103-320
• Brand: UDS
• Series: 1310
• Spline: 31/32 X 1.397
• Hub Dia: 1.886"
• CJ to End: 5.500"
• Notes: Short TH400