3-2-489 | Flange Yoke 1480 Ser’ , Bolt Holes: 4 x 0.500 , Bolt Circle Dia 4.750 , Pilot: 3.750M

Replacing a worn or damaged flange yoke starts with getting the right part. The 3-2-489 flange yoke is dimensioned for one bolt circle, one pilot diameter, and one drivetrain series — 1480 series. A mismatched bolt circle means the yoke won't seat flat. A wrong pilot means the driveshaft runs off-center. The 3-2-489 flange yoke removes both risks.

3-2-489 Flange Yoke — 1480 Series Specifications & Fitment

The 1480 series covers heavy commercial Class 3-4 trucks and Dana heavy applications. The 3-2-489 flange yoke specs: 4.750 bolt circle | 3.750 pilot | 4x0.500 bolt holes | 1.500" CJ-to-flat. Rectangular Bolt Pattern 3.053 x 3.639". 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 3-2-489 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: 1480 — built for heavy commercial Class 3-4 trucks and Dana heavy applications
• Bolt circle: 4.750 — must match axle/diff flange hole pattern exactly
• Pilot dia: 3.750 — centers yoke on companion flange, no play allowed
• 4 bolt holes at 0.500 — verify hole count and size
• CJ-to-flat: 1.500" — affects driveshaft working angle clearance
• Brand: UDS — direct-fit replacement
• Note: Rectangular Bolt Pattern 3.053 x 3.639"

Specifications

• SKU: 3-2-489
• Brand: UDS
• Series: 1480
• Bolt Circle: 4.750
• Pilot Dia: 3.750
• Bolt Holes: 4
• Bolt Hole Dia: 0.500
• CJ to Flat: 1.500"
• Notes: Rectangular Bolt Pattern 3.053 x 3.639"