The transfer case most commonly found in 2000 Chevrolet Silverado 4x4 models is the NP246, also known as NVG246. Two-wheel-drive Silverado trucks do not have a transfer case at all.
In practice, the 2000 Silverado’s four-wheel-drive system relies on a two-speed transfer case that provides high-range 4Hi and low-range 4Lo, with the option of electronic shift on some configurations. Variants can exist by trim and drivetrain, so the exact code should be confirmed for your specific truck using its VIN, build sheet, or the transfer case itself.
Transfer-case option commonly found on 2000 Silverado 4x4s
Here's a quick breakdown of the most common transfer-case setup you’ll encounter on a 2000 Silverado with four-wheel drive.
- NP246 / NVG246 transfer case (2-speed, electronic shift, 4Hi/4Lo). This is the standard GM option for many 4x4 Silverados from that era.
In short, the NP246 is GM’s typical transfer-case solution for 2000 Silverado 4x4 models, with 2WD versions missing a transfer case entirely.
How to identify your transfer case
To confirm which transfer case your truck uses, follow these steps. Each step helps you verify the exact model and drivetrain configuration for maintenance or replacement purposes.
- Inspect the transfer case housing: look for stamped codes near the fill plug or on the side of the case. Common codes include NP246 or NVG246.
- Check the glove box or door jamb build sheet or your VIN/RPO sticker to confirm original equipment (the RPO code will indicate the transfer case option).
- Examine the shift mechanism: electronic shift actuators are typical on NP246/NVG246, while some earlier setups may have mechanical or manual levers.
- When in doubt, consult the factory service manual or contact GM/your dealer with the VIN to verify the exact transfer-case model installed.
Following these steps should help you verify whether your 2000 Silverado uses the NP246/NVG246 transfer case or another configuration.
Common issues and maintenance
Like any aging transfer case, the NP246/NVG246 can develop problems, especially as miles accumulate. Here are common issues and basic maintenance considerations to keep in mind.
- Shift motor/actuator failure or linkage wear, which can prevent timely engagement of 4WD or 4Lo.
- Leakage at input/output seals or the fill plug, leading to low fluid and excessive wear.
- Fluid degradation or incorrect specification, which can cause overheating or poor shifting.
- Worn gear/chain components inside the case, potentially resulting in noise or loss of low-range capability.
- Electrical connector corrosion or wiring harness wear, affecting electronic shift control.
Regular inspection of the transfer-case fluid level, timely replacement with the manufacturer-recommended fluid, and addressing any shift or leak symptoms early can extend the life of the NP246/NVG246 unit.
Summary
For most 2000 Silverado models equipped with four-wheel drive, the transfer case is the NP246 (also called NVG246). Two-wheel-drive Silverados do not have a transfer case. To be certain, check the case stamping, the vehicle’s build sheet or VIN details, and, if needed, consult the service manual or a GM dealer. Understanding your exact transfer case helps with proper maintenance and any replacement decisions.