3302-185 – Flange Yokes – 1330 Series – Bolt Circle Dia 3.661″ – Pilot Dia 1.811, M

The 3302-185 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 3302-185 flange yoke is the correct replacement.

3302-185 Flange Yoke — 1330 Series Specifications & Fitment

The 1330 series covers light-to-medium duty trucks and GM half-ton platforms. The 3302-185 flange yoke specs: 3.661 bolt circle | 1.811 pilot | 4x0.482 bolt holes | 1.625" 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 3302-185 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: 1330 — built for light-to-medium duty trucks and GM half-ton platforms
• Bolt circle: 3.661 — must match axle/diff flange hole pattern exactly
• Pilot dia: 1.811 — centers yoke on companion flange, no play allowed
• 4 bolt holes at 0.482 — verify hole count and size
• CJ-to-flat: 1.625" — affects driveshaft working angle clearance
• Brand: UDS — direct-fit replacement

Specifications

• SKU: 3302-185
• Brand: UDS
• Series: 1330
• Bolt Circle: 3.661
• Pilot Dia: 1.811
• Bolt Holes: 4
• Bolt Hole Dia: 0.482
• CJ to Flat: 1.625"