Velvet Drive 72C 2.57:1 & 2.91:1 Reduction Unit Diagram (Later Style)
| Ref # | Part # | Description | Qty. |
|---|---|---|---|
| 1 | VD-179864 | Hex head bolt (7/16-14 x 1 3/4) | 2 |
| 2 | VD-103322 | Lockwasher (7/16) | 2 |
| 3 | VD-179840 | Hex head bolt (3/8-18 x 1 1/8) | 6 |
| 4 | CRU-RS2180 | Lockwasher (3/8) | 6 |
| 5 | ALTO-023320 | Coupling nut | 1 |
| 6 | VD-1000031001 | Coupling | 1 |
| 7 | VD-1017659007 | Pinion cage and output shaft assembly (2.57:1 only) | 1 |
| 7A | VD-1017659008 | Pinion cage and output shaft assembly (2.91:1 only) | 1 |
| 8 | VD-L6-135 | Oil collector ring (2.57:1 only) | 1 |
| 8A | VD-L4-135 | Oil collector ring (2.91:1 only) | 1 |
| 9 | VD-R10B-40 | Pinion shaft pin (2.57:1 only) | 6 |
| 9A | VD-4717L | Pinion shaft pin (2.91:1 only) | 6 |
| 10 | VD-L5-39 | Pinion shaft | 6 |
| 11 | VD-L6-43 | Thrustwasher (2.57:1 only) | 12 |
| 11A | VD-L3-43 | Thrustwasher (2.91:1 only) | 12 |
| 12 | VD-4741A | Roller bearing | 288 |
| 13 | VD-L3-41 | Pinion bearing spacer | 6 |
| 14 | VD-L6-5 | Pinion gear (2.57:1 only) | 6 |
| 14A | VD-L4-5 | Pinion gear (2.91:1 only) | 6 |
| 15 | VD-1017159003 | Pinion cage and output shaft (2.57:1 only) | 1 |
| 15A | VD-1017159004 | Pinion cage and output shaft (2.91:1 only) | 1 |
| 16 | N/A | Bearing assembly | 1 |
| 17 | VD-1000133010 | Bearing cone* | 1 |
| 18 | VD-1000133009 | Bearing cup* | 1 |
| 19 | VD-1017053002 | Solid spacer (.820-.821 inch long)** | 1 |
| 19A | VD-1017053003 | Solid spacer (.829-.830 inch long)** | 1 |
| 19B | VD-1017053004 | Solid spacer (.832-.833 inch long)** | 1 |
| 19C | VD-1017053005 | Solid spacer (.835-.836 inch long)** | 1 |
| 19D | VD-1017053006 | Solid spacer (.838-.839 inch long)** | 1 |
| 19E | VD-1017053007 | Solid spacer (.841-.842 inch long)** | 1 |
| 19F | VD-1017053008 | Solid spacer (.844-.845 inch long)** | 1 |
| 19G | VD-1017053009 | Solid spacer (.847-.848 inch long)** | 1 |
| 19H | VD-1017053010 | Solid spacer (.850-.851 inch long)** | 1 |
| 19I | VD-1017053011 | Solid spacer (.853-.854 inch long)** | 1 |
| 19J | VD-1017053012 | Solid spacer (.856-.857 inch long)** | 1 |
| 20 | VD-1000044017 | Oil seal | 1 |
| 21 | N/A | Bearing assembly | 1 |
| 22 | VD-1000133002 | Bearing cone* | 1 |
| 23 | VD-1000133001 | Bearing cup* | 1 |
| 24 | VD-4776BB | Lock bolt (7/16-14 x 7/8) | 2 |
| 25 | VD-1017036001 | Oil baffle | 1 |
| 26 | VD-1017065001 | Reduction housing | 1 |
| 27 | VD-4734 | Snap ring | 1 |
| 28 | VD-L6-104 | Sun gear (2.57:1 only) | 1 |
| 28A | VD-L7-104 | Sun gear (2.91:1 only) | 1 |
| 29 | VD-4853E | Lock bolt (7/16-14 x 1 1/4) | 6 |
| 30 | VD-115550 | Lockwasher (7/16) | 6 |
| 31 | VD-4756E | Snap ring (2.57:1 only) | 1 |
| 31A | VD-4756D | Snap ring (2.91:1 only) | 1 |
| 32 | VD-L6-31 | Stationary gear plate (2.57:1 only) | 1 |
| 32A | VD-L7-31 | Stationary gear plate (2.91:1 only) | 1 |
| 33 | VD-L6-6 | Ring gear (2.57:1 only) | 1 |
| 33A | VD-L3-6 | Ring gear (2.91:1 only) | 1 |
| 34 | ALTO-023023 | Rear adapter gasket | 1 |
| 35 | VD-L7-8A | Reduction unit adapter | 1 |
| 36 | VD-4816 | Snap ring | 1 |
| 37 | VD-1000130018 | Bearing | 1 |
| 38 | ALTO-023021 | Front adapter gasket | 1 |
*Replace both parts if one is damaged
**Select correct size spacer at assembly. Only one required.
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