2102-221 – Flange Yokes – 1210 Series – Bolt Circle Dia 2.930″ – Pilot Dia 2.240-M

The 2102-221 flange yoke is the direct bolt-on connection between your 1210 series driveshaft and the differential or axle housing flange. Bolt circle and pilot diameter are the two specs that determine whether this part fits — everything else is secondary. The 2102-221 flange yoke is machined to one specific set of dimensions, and those dimensions have to match your axle flange exactly.

2102-221 Flange Yoke — 1210 Series Specifications & Fitment

The 1210 series covers older foreign compacts and small import trucks. The 2102-221 flange yoke specs: 2.930 bolt circle | 2.240-M pilot | 4x0.345 bolt holes | 1.250" 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 2102-221 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: 1210 — built for older foreign compacts and small import trucks
• Bolt circle: 2.930 — must match axle/diff flange hole pattern exactly
• Pilot dia: 2.240-M — centers yoke on companion flange, no play allowed
• 4 bolt holes at 0.345 — verify hole count and size
• CJ-to-flat: 1.250" — affects driveshaft working angle clearance
• Brand: UDS — direct-fit replacement

Specifications

• SKU: 2102-221
• Brand: UDS
• Series: 1210
• Bolt Circle: 2.930
• Pilot Dia: 2.240-M
• Bolt Holes: 4
• Bolt Hole Dia: 0.345
• CJ to Flat: 1.250"