Rockford Drive Line
Quality Value and Service for over 50 Years

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Flanged Yoke Style Centering Assembly

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RDL Part Number A
Center to Center Dim.		 B
Center to Center Dim.		 C
Bolt Hole Dia.		 D
Pilot Dia.		 E
Center Line to Flange Face		 F
Socket Dia.		 G
Snap Ring Lockup		 H
Bearing Dia		 Reference Notes
R2-21-1489 2.478 2.478 .484 2.000 1.625 .500 2.437 1.063 Spicer 1210 External Seal
R2-21-1229 2.478 2.478 .484 2.000 1.625 .500 3.219 1.063 Spicer 1310
External Seal
R2-21-1229LH — — — 2.000 1.625 .500 3.219 1.063 Spicer 1310
No Holes in Flange
R2-21-1543 2.478 2.478 .484 2.000 1.625 .500 3.219 1.063 Spicer 1310
Internal Seal
R2-21-3191 2.642 2.642 .393 M-2.559 1.625 .500 3.219 1.063 Spicer 1310 Land Rover Discovery Bolt Pattern
R2-21-3124 2.938 2.662 .453 3.125 1.625 .500 3.219 1.063 Spicer 1310 Saginaw Bolt Pattern
R2-21-1452 3.000 3.000 .453 3.125 1.625 .500 3.219 1.063 Spicer 1310 Saginaw Bolt Pattern
R2-21-3162 2.210 2.210 .328 M-1.770 1.625 .500 3.129 1.063 Spicer 1310 Suzuki Bolt Pattern
R2-21-3116 2.360 2.360 .410 M-1.809 1.625 .500 3.219 1.063 Spicer 1310 Toyota Bolt Pattern
R2-21-3123 2.596 2.596 .445 M-1.809 1.625 .500 3.219 1.063 Spicer 1310 Toyota Bolt Pattern
R2-21-3114 2.696 2.364 .328 M-1.809 1.625 .500 3.219 1.063 Spicer 1310 Toyota Bolt Pattern
R2-21-3174 2.696 2.364 .394 M-1.809 1.625 .500 3.219 1.063 Spicer 1310 Toyota Bolt Pattern
R2-21-3115 2.750 2.426 .394 M-1.809 1.625 .500 3.219 1.063 Spicer 1310 Toyota Bolt Pattern
R2-21-1606 2.953 2.656 .453 3.125 1.812 .500 3.623 1.063 Spicer 1330
External Seal
R2-21-1520 2.953 2.656 .453 3.125 1.812 .625 3.623 1.063 Spicer 1330
External Seal
R2-21-1631 3.000 3.000 M12x1.75 2.000 1.625 .500 3.623 1.063 Spicer 1330
Internal Seal
R2-21-1868 3.000 3.000 .453 3.125 1.625 .500 3.623 1.063 Spicer 1330
Internal Seal
R3R-21-3124 2.933 2.643 .453 3.125 1.705 1.111 *2.560 1.125 Saginaw 3R
 
R3R-21-627 3.000 3.000 .413 3.125 1.705 1.111 *2.560 1.125 Saginaw 3R
 
R3R-21-482 3.000 3.000 .453 3.125 1.705 1.111 *2.560 1.125 Saginaw 3R
 
R3-21-2024 3.000 3.000 M12x1.75 2.000 1.625 .500 3.622 1.188 Spicer 1350 Internal Seal
R3-21-2025 3.000 3.000 M12x1.75 2.688 1.625 .500 3.622 1.188 Spicer 1350 Internal Seal
R3-21-3281 3.000 3.000 .453 3.125 1.625 .500 3.622 1.188 Spicer 1350 Internal Seal
R3-21-3136 2.478 2.478 .484 2.000 1.625 .500 3.622 1.188 Spicer 1350 Spicer 1310 Bolt Pattern
R3-21-7324 3.000 3.000 M12x1.75 2.000 1.625 1.111 3.622 1.188 Spicer 1355 (Saginaw Style Ball Kit
* Snap ring lockup is measured inside the yoke, not as shown above


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Rockford Drive Line
1500 11th Ave.-Rockford, IL-61104
815-962-1411 - (fax) 815-965-4857
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