What do the RPO codes mean?
Regular Production Option
A Regular Production Option (RPO) is a General Motors standard coding for vehicle configuration options and began in 1970. These codes are a combination of 3 alphanumeric characters and refer to a specific option or modification to the vehicle including the paint color.
What is RPO Z95?
Z95: MagneRide magnetorheological damper system, utilizing magnetically controlled shocks and struts. ZW7: Premium Smooth Ride suspension, using conventional shocks in the front and self-leveling Nivomat shocks in the rear.
What is RPO code SLM?
SLM SLM : STOCK ORDER, PROCESSING CODE. VXS VXS : VEHICLE COMPLETE. YD3 YD3 : FRONT AXLE, BASE EQUIPMENT FOR SCHEDULING, GVW PLATE. ZM9 ZM9 Sales Package Comfort and Convenience (Utility/Suburban Feature Package) ZY1 ZY1 : COLOR COMBINATION, SOLID.
How do I decode a GM VIN code?
GM’s format is as follows:
- 4th digit: Model platform code.
- 5th digit: Model series code.
- 6th digit: Body style.
- 7th digit: Restraint type (seatbelts and airbags)
- 8th digit: Engine type.
- 9th digit: Check digit.
- 10th digit: Model year.
- 11th digit: Factory ID.
How do I decode a GM VIN number?
What does the GM VIN contain?
- Digits 1-3 are the World Manufacturer Index (WMI). This tells you where a vehicle was made, who the manufacturer is, and what type of vehicle it is.
- Digits 4-9 are the Vehicle Description Section (VDS).
- Digits 10-17 are the Vehicle Identification Section (VIS).
What rear end is GT4?
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 |