How do I know my GM rear end ratio?
How do I know my GM rear end ratio?
Identify your GMC or Chevrolet rear end gear ratio by the RPO Codes, usually located on the placard labeled “Service Parts Identification” inside the drivers door panel or glove box.
What gear ratio is a GT5?
4.10
GM RPO Codes – Factory Identification Labels and Interpretation
| RPO Code | Description | Ratio |
|---|---|---|
| GT2 | Axle Rear | 2.29 |
| GT4 | Axle Rear (Dup of 5X1) | 3.73 |
| GT5 | Axle Rear (Dup of GT8) | 4.10 |
| GT7 | Axle Rear | 3.33 |
What is a G80 rear end?
Often referred to as the G80 for its order code, the rear axle locks automatically if one wheel starts to spin, enabling both rear wheels to propel the truck. The added traction lets a 2WD pickup to go places traditionally thought of as 4×4 territory, and further enhances the capability of 4×4 pickups.
What rear end is a GT5?
GM RPO Codes – Factory Identification Labels and Interpretation
| RPO Code | Description | Ratio |
|---|---|---|
| GT1 | Axle Rear | 2.56 |
| GT2 | Axle Rear | 2.29 |
| GT4 | Axle Rear (Dup of 5X1) | 3.73 |
| GT5 | Axle Rear (Dup of GT8) | 4.10 |
What rear end is in my truck?
Stamped Number on the Axle To figure out exactly what axle you have, you can look for the Dana stamped bill of materials number. This stamped number can usually be found on the righthand side or on the longer axletube on the same side of the tube as the differential cover, facing the rear of the truck.
Are 3.42 gears good for towing?
The higher the ratio, the better the towing power but lower the fuel economy and speed. The lower the ratio, the better the fuel economy and speed but lower the towing power. The 2021 Silverado 1500 provides two axle ratios: 3.42 and 3.23. If you’re looking for a higher towing capacity, choose the 3.42 rear axle ratio.
