Ring and Pinion – 3.90 Ratio – 30 Spline Pinion – 3 Series – Thick Gear – 8.5 in – GM 12-Bolt – Kit
| Brand | Richmond Gear |
| Part Number | 49-0031-1 |
| Ring and Pinion Ratio | 3.90 |
| Carrier Series | 3 |
| Thick / Thin Gear | Thick |
| Pinion Spline Count | 30 |
| Pinion Gear Tooth Count | 10 |
| Ring Gear Tooth Count | 39 |
| Ring Gear Diameter | 8.5 in |
| Pinion Shaft Diameter | 1.625 in |
| Carrier Breaks | 2.41 to 3.70 |
| Ring Gear Bolt Quantity | 10 |
| Rotation | Standard |
| Ring Gear Alloy | 8620 |
| Installation Kit Included | No |
| Ring Gear Material | Steel |
| Ring Gear Color | Natural |
| Ring Gear Finish | Natural |
| Quantity | Kit |
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