4-1-1133-2 Companion Flange Yoke Bore: 1.625 – Keyway: 0.375 – Pilot: 3.750 F
$76.99
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Description
4-1-1133-2 companion flange — 1.625″ bore, 0.375″ keyway, 3.750″ female pilot. 4-bolt on 4.750″ BC. OD 5.880″. Through hole 2.500″.
Full Description
Companion flanges mount to a transmission output shaft or differential pinion shaft via a bore-and-keyway engagement, unlike splined end yokes that engage involute splines. The 4-1-1133-2 uses a 1.625" round bore with a 0.375" (3/8") keyway to lock to a keyed shaft. This configuration is common on older transmission designs, some industrial gearboxes, and certain specialty axle applications.
The rectangular hole configuration of 3.053" x 3.639" refers to the U-joint bearing cap bolt pattern on this companion flange, not the mounting bolt pattern. These dimensions must match the U-joint saddle dimensions on the mating yoke or cross-member assembly.
| Specification | Value |
|---|---|
| Part Number | 4-1-1133-2 |
| Shaft Bore | 1.625" |
| Keyway Width | 0.375" |
| Pilot Diameter | 3.750" Female |
| Bolt Circle | 4.750" |
| Bolt Holes | 4 |
| Outside Diameter | 5.880" |
| Through Hole | 2.500" |
| Hole Config | 3.053" x 3.639" |
The 3.750" female pilot registers the flange concentrically onto a corresponding male boss on the mating surface. The 2.500" through hole must clear any shaft threading or end fittings. Verify all dimensions match your application before ordering as bore-and-keyway flanges are not interchangeable with splined configurations.
All companion flanges.
Additional information
| Bolt circle dia | 4.750 |
|---|---|
| Hub dia | 3.750 |
| Notes | Hole config: 3.053″ x 3.639″ |
| Partn number | 4-1-1133-2 |
| Pilot dia | 3.750F |
| Through hole | 2.500″ |
| Keyway | 0.375 |
| Bolt Holes | 4 |
| Outside dia | 5.880 |
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 | Partn number 1301-231 Splines count 23 Splines dia 0.990" Hub dia 1.500" Through hole 1.530 Pilot dia 1.808 Bolt circle dia 3.340 Face to end 2.234 Notes Toyota Mid-ship, SQ Bolt Holes 4 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 3.386 Hub dia 1.495 Notes Uses 2352-1001 (plunge) Partn number 1301-232 Pilot dia 3.937 Splines count 23 Splines dia 990 Through hole 1.540 Bolt Holes 6 Face to end 3.170 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Brand UDS Partn number 2-1-1313-4 Pilot dia 2.375 Bolt circle dia 3.125 Bore dia 1.250 Keyway 0.312 Outside dia 3.875 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 4.250 Hub dia 1.875 Notes Dana 60, 70 Pinion Conversion Flange Partn number 2010948 Pilot dia 2.000 Splines count 29 Splines dia 1.276 Through hole 1.500 Bolt Holes 8 Face to end 2.000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 100mm Hub dia 1.848 Notes Pinion Tri-Flange V6 12/18 Bolt hole Partn number 2801-301 Pilot dia 0 Splines count 30 Splines dia 1.250 Through hole 1.000 Bolt Holes 3/86 mm bolt to bolt Face to end 2.200 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 4.250 Hub dia 1.943 Notes Front 2007-2017 JEEP JK T-case Adapter Partn number 3-1-32JK Pilot dia 2.000 Splines count 32 Splines dia 1.401 Through hole 2.000 Bolt Holes 4 Face to end 3.810 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 4.250 Hub dia 1.943 Notes Rear 2007-2017 JEEP JK T-case Adapter Partn number 3-1-32R Pilot dia 2.000 Splines count 32 Splines dia 1.401 Through hole 2.000 Bolt Holes 4 Face to end 2.530 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 3.386 Hub dia 1.554 Notes Uses 2352-1001 (plunge) Partn number 3101-262 Pilot dia 3.937 Splines count 26 Splines dia 1.146 Through hole 1.535 Bolt Holes 6 Face to end 3.170 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 3.386 Hub dia 1.450" Notes Uses 2352-1001 (plunge) Partn number 3101-262M Pilot dia 3.937 Splines count 26 Splines dia 1.146 Through hole 1.535 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| | Bolt circle dia 3.386 Hub dia 1.400 Notes Uses 2352-1001 (plunge) Partn number 3101-262M2 Pilot dia 3.937 Splines count 26 Splines dia 1.146 Through hole 1.535 Bolt Holes 6 Face to end 3.170 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
