3-53-451 Splined MIdship Stub Shafts , Splines: 1.562 X 16 , Fits 3.500 X 0.083 | 3-53-07832

The 3-53-451 midshaft stub is the center section of a two-piece driveshaft — it carries the center support bearing and bridges the front and rear shaft assemblies. Spline count, spline diameter, and butt diameter are all spec-specific. The 3-53-451 midshaft stub won't fit a different tube OD or a different output shaft spline, and substituting a close-but-not-exact part will produce vibration that traces directly back to this component.

3-53-451 Midshaft Stub — Spline & Tube Dimensions

The 3-53-451 midshaft stub specs: 16 x 1.562 spline | 5.938" spline length | 3.344" butt dia | 8.531" end-to-weld | fits 3.500 tube. The butt diameter determines how the stub seats in the driveshaft tube — too loose and the weld joint runs off-center. Spline length determines engagement depth on the output shaft; short engagement under high torque loads damages the shaft splines before the stub shows any sign of wear.

When replacing a midshaft stub, measure both the tube ID and the output shaft spline count before ordering. Check runout on the new 3-53-451 midshaft stub before welding — a stub with more than 0.005" runout will never balance correctly regardless of how many weights you add.

Key Features

• Spline: 16 x 1.562 — verify against output shaft
• Spline length: 5.938" — full engagement required under load
• Butt dia: 3.344" — must seat concentrically in driveshaft tube
• End-to-weld: 8.531" — factors into total shaft length
• Tube fit: 3.500 — designed for this tube specification
• Brand: UDS

Specifications

• SKU: 3-53-451
• Brand: UDS
• Spline: 16 x 1.562
• Spline Length: 5.938"
• Butt Dia: 3.344"
• End to Weld: 8.531"
• Tube Fit: 3.500