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2-2-939 | Flange Yoke 1310 Series Ford 8.8″ and 7.5″ Small Bolt Pattern 3.500 inch E1DZ-4782-A , E1DZ4782A
$19.13
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Description
2-2-939 UDS 1310 series flange yoke for Ford 8.8″ and 7.5″ small bolt pattern, 4×0.500″ holes, BC 3.500″, pilot 2.000″ female. OEM ref E1DZ-4782-A. Verify small vs large bolt pattern before ordering.
Full Description
2-2-939 UDS 1310 Series Flange Yoke Ford 8.8 and 7.5 Small Bolt Pattern
The 2-2-939 is a 1310 series flange yoke manufactured by UDS for Ford 8.8" and 7.5" axle applications using the small bolt pattern. It features 4 bolt holes at 0.500" diameter on a 3.500" bolt circle with a 2.000" female (F) pilot diameter. The CJ-to-flat dimension is 1.650". This yoke cross-references to Ford OEM part numbers E1DZ-4782-A and E1DZ4782A.
Specifications
- Part Number: 2-2-939
- Brand: UDS
- Series: 1310
- Application: Ford 8.8" and 7.5" axles, small bolt pattern
- Bolt Holes: 4 x 0.500"
- Bolt Circle Diameter: 3.500"
- Pilot Diameter: 2.000" (Female)
- Pilot Type: F (Female)
- CJ to Flat: 1.650"
- OEM Reference: E1DZ-4782-A / E1DZ4782A
The 2-2-939 is designed for Ford's small bolt pattern rear axle companion flange, found on 8.8" and 7.5" differentials. Confirm the axle companion flange is the small-pattern variant — Ford also used a large bolt pattern on 8.8" axles, and these two patterns are not interchangeable. The female pilot diameter is 2.000"; the companion flange male pilot must match this bore for concentric mounting.
The 4 x 0.500" bolt hole specification sets the fastener size at this interface. The 1.650" CJ-to-flat dimension determines working clearance at the U-joint. The cross-reference to Ford OEM numbers E1DZ-4782-A and E1DZ4782A confirms applicability on the original Ford 8.8" and 7.5" driveline architecture. The 2-2-939 is rated in the 1310 series, consistent with the factory Ford driveshaft rating on these axle platforms.
Additional information
| Bolt circle dia | 3.500 |
|---|---|
| Bolt hole dia | 0.500 |
| Cj to flat | 1.650 |
| Partn number | 2-2-939 |
| Pilot dia | 2.000-F |
| Series | 1310 |
| Bolt Holes | 4 |
| Notes | Ford 8.8″ and 7.5″ Small Bolt Pattern |
| Brand | UDS |
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 | Partn number 10-2-29 Series 1000 Pilot dia 2.250 Bolt circle dia 2.750 Bolt hole dia 4 Brand SPICER Notes Rec Bolt Pattern Bolt Holes 4 Cj to flat 1.562 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.200 Bolt hole dia 0.411 Cj to flat 1.125 Partn number 1102-191 Pilot dia 1.968 ⋅ M Series ATV Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.576 Bolt hole dia 0.471 Cj to flat 1.625 Partn number 1202-077 Pilot dia 1.899-F Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Pilot dia 1.811 Partn number 1202-181 Bolt Holes 4 Bolt hole dia 0.400 Series 1251 Bolt circle dia 3.200 Cj to flat 1.625 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.550 Bolt hole dia 0.425 Cj to flat 1.625 Partn number 1202-196 Pilot dia 1.968-M Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 2.950 Bolt hole dia 0.395 Cj to flat 1.900 Partn number 1202-20 Pilot dia 1.968-M Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.555 Bolt hole dia 0.427 Cj to flat 1.750 Partn number 1202-201 Pilot dia 1.991-F Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.200 Bolt hole dia 0.406 Cj to flat 1.750 Partn number 1202-21 Pilot dia 1.968-M Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 3.347 Bolt hole dia 0.407 Cj to flat 1.625 Partn number 1202-237 Pilot dia 2.375-M Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
 | Bolt circle dia 2.750 Bolt hole dia 0.323 Cj to flat 1.375 Partn number 1202-252 Pilot dia 2.248-M Series 1251 Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
