3502-104A – Flange Yokes – 1350 Series – Bolt Circle Dia 3.470″ – Pilot Dia 4.093, OD
$418.65
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Description
3502-104A Flange Yoke — 1350 series, 3.470 bolt circle | 4.093 pilot | 8×0.425 bolt holes | 3.440″ CJ-to-flat. Proven bolt-on replacement. Verify bolt circle and pilot before ordering.
Full Description
The 3502-104A 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 3502-104A flange yoke is the correct replacement.
3502-104A 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 3502-104A flange yoke specs: 3.470 bolt circle | 4.093 pilot | 8x0.425 bolt holes | 3.440" 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 3502-104A 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: 3.470 — must match axle/diff flange hole pattern exactly
- Pilot dia: 4.093 — centers yoke on companion flange, no play allowed
- 8 bolt holes at 0.425 — verify hole count and size
- CJ-to-flat: 3.440" — affects driveshaft working angle clearance
- Brand: UDS — direct-fit replacement
Specifications
- SKU: 3502-104A
- Brand: UDS
- Series: 1350
- Bolt Circle: 3.470
- Pilot Dia: 4.093
- Bolt Holes: 8
- Bolt Hole Dia: 0.425
- CJ to Flat: 3.440"
Additional information
| Bolt circle dia | 3.470 |
|---|---|
| Bolt hole dia | 0.425 |
| Cj to flat | 3.440 |
| Partn number | 3502-104A |
| Pilot dia | 4.093, OD |
| Series | 1350 |
| Bolt Holes | 8 |
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| Flange Yokes (241) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.125 Bolt hole dia 0.410 Cj to flat 2.000 Partn number 3102-312S Pilot dia 2.375 ⋅ M Series 1310 Bolt Holes 4 Notes SQUARE PATTERN 2.200 X 2.200 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.125 Bolt hole dia 0.375 Cj to flat 1.375 Partn number 2-2-329 ⋅ 3102-329U ⋅ N2-2-329 Pilot dia 2.375 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.346 Bolt hole dia 0.406 Cj to flat 1.766 Partn number 3102-33 Pilot dia 2.559 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.285 Bolt hole dia 0.465 Cj to flat 1.500 Partn number 3102-35 Pilot dia 1.700 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 2.875 Bolt hole dia 0.380 Cj to flat 1.375 Partn number 2-2-349 ⋅ 3102-36U ⋅ N2-2-349 Pilot dia 3.625 ⋅ OD Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.543 Bolt hole dia 0.410 Cj to flat 1.685 Partn number 3102-361 Pilot dia 2.362 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 4.133 Bolt hole dia 0.410 Cj to flat 1.685 Partn number 3102-362 Pilot dia 2.362 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.750 Bolt hole dia 0.481 Cj to flat 1.750 Partn number 3102-37 Pilot dia 2.559 ⋅ M Series 1310 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 2.750 Bolt hole dia 0.315 Cj to flat 1.625 Partn number 3102-39 Pilot dia 2.245 ⋅ M Series 1310 Bolt Holes 4 Brand UDS Notes Mostly used on Nissan | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.386 Bolt hole dia 0.415 Cj to flat 2.592 Partn number 3102-391 Pilot dia 3.937 ⋅ OD Series 1310 Bolt Holes 6 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
