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SKU:
GTP06602
3.90 Ratio GM 7.75 IRS For () | 69-0461-1, GMBW-390-NG, SS78-391
Regular price
$348.15
Unit price
/
Unavailable
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3.90 Ratio GM 7.75 IRS For () | 69-0461-1, GMBW-390-NG, SS78-391 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
This part typically ships within 1 to 2 business days.
3.90 Ratio GM 7.75 IRS For () | 69-0461-1, GMBW-390-NG, SS78-391
Regular price
$348.15
Unit price
/
Unavailable
This Differential Ring and Pinion is precision manufactured to OEM gear ratios and tooth geometry. It distributes torque efficiently between axles, maximizing traction and minimizing wear in commercial trucks.
Specifications
| Cover Bolt Quantity | 9 |
|---|---|
| Differential Model | GM 7.75 IRS |
| Gear Ratio | 3.90 |
| Mounting Location | Rear |
| Pinion Gear Tooth Quantity | 11 |
| Pinion Shaft Diameter | 1.376 Inch |
| Pinion Spline Count | 27 |
| Ring Gear Bolt Quantity | 8 |
| Ring Gear Material | 8620 Steel |
| Ring Gear Outside Diameter | 7.75 Inch |
| Ring Gear Rotation | Standard |
| Ring Gear Tooth Quantity | 43 |
| Warranty Period | 2 Years or 100,000 Miles |
Vehicle Applications
| Year | Make | Model |
|---|---|---|
| 2004-2006 | Pontiac | GTO |
Interchange / Cross-Reference Numbers
| Brand | Part Number |
|---|---|
| Richmond Gear | 69-0461-1 |
| Nitro Gear & Axle | GMBW-390-NG |
| OE Aftermarket | SS78-391 |
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