3102-86 Flange Yoke 1310 Series, Outside Diameter 100 mm Jeep CV Joint Conversion Flange

The 3102-86 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 3102-86 flange yoke is the correct replacement.

3102-86 Flange Yoke — 1310 Series Specifications & Fitment

The 1310 series covers light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500. The 3102-86 flange yoke specs: 3.386 bolt circle | 3.935 pilot | 6x0.328 bolt holes | 2.750" 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 3102-86 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: 1310 — built for light-duty trucks — F-150, Silverado 1500, Jeep Wrangler, Ram 1500
• Bolt circle: 3.386 — must match axle/diff flange hole pattern exactly
• Pilot dia: 3.935 — centers yoke on companion flange, no play allowed
• 6 bolt holes at 0.328 — verify hole count and size
• CJ-to-flat: 2.750" — affects driveshaft working angle clearance
• Brand: UDS — direct-fit replacement

Specifications

• SKU: 3102-86
• Brand: UDS
• Series: 1310
• Bolt Circle: 3.386
• Pilot Dia: 3.935
• Bolt Holes: 6
• Bolt Hole Dia: 0.328
• CJ to Flat: 2.750"