1226-201 – Weld Yokes – 1251 Series – Butt Dia 1.875″ – Tube Dia Wall 2.000×0.065

Precision Weld Yoke 1226-201 -- Engineered for 1251 Series Driveshafts

Universal Driveshafts' 1226-201 weld yoke is a production-quality component for 1251 series propshaft assembly. The 1.875" butt diameter is bored to accept 2.000x0.065" OD tubing at " wall, providing the controlled clearance needed for a full-penetration circumferential weld. The 1.750"" center-to-weld dimension aligns with industry-standard 1251 driveshaft geometry used on light-duty import and compact truck vehicles.

Complete Dimensions

Why Material Choice Matters at the Weld Joint

Heat-treated steel construction delivers the torsional rigidity required for heavy-duty propshaft applications, resisting deflection under load. The yoke ears are machined to series-standard cap pocket dimensions -- the 1251 series uses a 1.062" cap diameter -- ensuring that standard u-joint crosses seat flush with no shimming.

Application & Fitment Guidance

The 1251 series is the standard u-joint specification for light-duty import and compact truck driveshaft applications. This weld yoke is compatible with any shaft built to that series standard. Confirm the following before installation:

• Tube OD is 2.000x0.065" -- measure with calipers, not a ruler.
• Tube wall is " -- thinner walls require reduced heat input to avoid burn-through.
• Companion u-joint is a 1251 series cross.
• Companion yoke or flange at the opposite end is also 1251 series.

Post-Weld Quality Check

Inspect the weld toe for undercut and lack-of-fusion defects. Rotate the shaft in V-blocks and measure TIR at the u-joint seat; values above 0.005" require correction before dynamic balancing. Balance the completed assembly per your vehicle's balance spec -- typically 0.20-0.25 oz-in for passenger car applications, tighter for performance builds.

Special note: FOREIGN