2-2-1339B Flange Yoke 1350 series , 6 x 0.441 Holes on 3.307 Bolt Circle Diameter FY1350-100-6 , 2.244 Female Pilot

The 2-2-1339B flange yoke mounts to the companion flange or axle housing and carries the driveshaft end u-joint. It's not a universal part — the bolt circle, pilot diameter, and series are all specific. Vibration that tracks with vehicle speed and stays consistent under load often starts right here, at a worn or mis-seated flange yoke. The 2-2-1339B flange yoke is the correct replacement.

2-2-1339B Flange Yoke — 1350 Series Specifications & Fitment

The 1350 series covers 3/4-ton trucks — F-250, Ram 2500, Dana 44/60 axles, performance 4x4. The 2-2-1339B flange yoke specs: 3.307 bolt circle | 2.244-F pilot | 6x0.345 bolt holes | 2.625" CJ-to-flat. Pilot diameter is what centers the yoke on the companion flange — that dimension must match exactly or the driveshaft will run off-center at speed. Bolt circle determines your hole pattern match.

Before ordering the 2-2-1339B flange yoke, measure your diff flange bolt circle and pilot diameter directly. Don't rely on series designation alone — after an axle swap, the flange dimensions may differ from the original factory spec. Brand: UDS. Verify, then order.

Key Features

• Series: 1350 — built for 3/4-ton trucks — F-250, Ram 2500, Dana 44/60 axles, performance 4x4
• Bolt circle: 3.307 — must match axle/diff flange hole pattern exactly
• Pilot dia: 2.244-F — centers yoke on companion flange, no play allowed
• 6 bolt holes at 0.345 — verify hole count and size
• CJ-to-flat: 2.625" — affects driveshaft working angle clearance
• Brand: UDS — direct-fit replacement

Specifications

• SKU: 2-2-1339B
• Brand: UDS
• Series: 1350
• Bolt Circle: 3.307
• Pilot Dia: 2.244-F
• Bolt Holes: 6
• Bolt Hole Dia: 0.345
• CJ to Flat: 2.625"