Description
Part Description
This Grade A transfer case was removed from a 2007 GM Silverado 1500 with only 93,000 miles. The unit features floor shift operation and is compatible with automatic transmissions (NP2 option). Our technicians have thoroughly inspected this transfer case and it is currently on the shelf ready to ship immediately.
The transfer case is a critical component in 4WD vehicles that distributes power between the front and rear axles. Common reasons for replacement include internal gear wear, chain stretch, bearing failure, or case cracking from age and high mileage use. This unit provides reliable 4WD engagement for both part-time and full-time four-wheel drive operation.
603 Auto Salvage maintains over 50,000 quality used parts in stock from more than 1,100 vehicles. Our experienced team can help you find the exact transfer case or drivetrain component you need. Browse our online inventory or call us to verify fitment and availability for your specific vehicle. 50,000+ parts in stock from over 1,100 vehicles. Contact us or call (603) 392-7313 for anything you need.
Part Specifications
| Part | Transfer Case Assembly – NP2 Option with Floor Shift |
| Interchange # | 599 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – Excellent working condition from 93K mile vehicle, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard coverage for drivetrain components under 100K miles) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2007 GM TRUCKS SILV15 |
| VIN | N/A |
| Vehicle Stock # | 0515241475 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Transfer Case Assembly – NP2 Option with Floor Shift:
| ✅ Case Housing Integrity | No cracks or damage to aluminum housing |
| ✅ Input/Output Shaft Play | Minimal play within specifications |
| ✅ Chain and Gear Condition | Good condition with normal wear patterns |
| ✅ Shift Mechanism Operation | Smooth engagement between 2WD and 4WD modes |
| ✅ Fluid Condition | Clean fluid with no metal contamination |
| ✅ Mounting Points | All mounting bosses and threads intact |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #599, this part fits the following vehicles. Always confirm fitment with your mechanic before purchasing.
| Year(s) | Make | Model | Notes |
|---|---|---|---|
| 2007-2013 | Chevrolet | Silverado 1500 | 4WD models with NP2 transfer case and automatic transmission |
| 2007-2013 | GMC | Sierra 1500 | 4WD models with NP2 transfer case and automatic transmission |
| 2007-2014 | Chevrolet | Suburban | 4WD models with compatible NP2 transfer case |
| 2007-2014 | Chevrolet | Tahoe | 4WD models with NP2 transfer case option |
| 2007-2014 | GMC | Yukon | 4WD models with NP2 transfer case configuration |
Questions? Need a shipping quote? Call us now:
603 Auto Salvage | 233 Main St, Plaistow, NH 03865
Mon–Fri 8am–4:30pm | Sat 8am–2pm | Sun Closed
Warranty & Shipping
Frequently Asked Questions
Will this transfer case fit my 2010 Silverado 1500 4WD?
Yes, this NP2 transfer case is compatible with 2007-2013 Silverado 1500 4WD models with automatic transmission. We recommend verifying your current transfer case model before ordering.
What are signs that my transfer case needs replacement?
Common symptoms include difficulty shifting between 2WD and 4WD, grinding noises during engagement, fluid leaks, or the 4WD system not engaging properly. Metal shavings in the transfer case fluid also indicate internal wear.
Does this transfer case come with the shift motor?
This is the main transfer case assembly. Electronic shift motors and actuators may be available separately – contact us to verify what components are included with this specific unit.
Can I use this transfer case with a manual transmission?
This specific unit is designed for automatic transmission applications (NP2 option). Manual transmission vehicles typically use different transfer case configurations with different input shaft specifications.
How much does transfer case installation typically cost?
Professional installation typically ranges from $400-800 depending on vehicle accessibility and shop rates. The job requires lifting the vehicle and may involve transmission removal for access.
What fluids does this transfer case require?
Most GM NP2 transfer cases use Dexron III automatic transmission fluid or GM-specific transfer case fluid. Check your owner’s manual for the exact specification and capacity requirements.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM RPO Code | NP2 |
| Transfer Case Type | Chain-driven part-time 4WD |
| Shift Type | Floor shift lever |
| Transmission Compatibility | Automatic transmission only |
Price Comparison — Why Used OEM Makes Sense
| Source | Price Range | Warranty | Notes |
|---|---|---|---|
| Dealer (New OEM) | $2,800-$3,500 | 1 year | Brand new, longest wait time |
| Aftermarket | $1,200-$1,800 | Varies | Non-OEM fitment, quality varies |
| Other Salvage Yards | $500-$700 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $450.00 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Support the transmission with a jack before removing transfer case mounting bolts
- Mark the front and rear driveshaft positions before removal for proper reinstallation
- Use new transfer case fluid and replace the drain plug gasket during installation
- Torque all mounting bolts to GM specifications – typically 35-40 ft-lbs for main case bolts
- Test 4WD engagement in both high and low range after installation before driving
🔍 Free Fitment Check
Call us with your VIN and we will verify compatibility for free. No obligation, no pressure — just answers.
Our parts specialists check interchange data in real-time
Estimated Shipping Costs by Region
This part ships via FedEx Freight. Prices are estimates — call for an exact quote to your zip code.
| Region | Estimated Cost | Transit Time |
|---|---|---|
| New England (NH, MA, ME, VT, CT, RI) | $150 – $250 | 1–3 business days |
| Northeast (NY, NJ, PA, MD, VA) | $200 – $350 | 2–4 business days |
| Southeast (FL, GA, NC, SC, TN) | $300 – $450 | 3–5 business days |
| Midwest (OH, MI, IL, IN, WI, MN) | $350 – $475 | 3–5 business days |
| Southwest (TX, AZ, NM, OK) | $400 – $550 | 4–6 business days |
| West Coast (CA, OR, WA) | $450 – $600 | 5–7 business days |
Local pickup is always free. Free delivery within 30 miles of Plaistow, NH.
Why Buy From 603 Auto Salvage?
- 50,000+ parts in stock from over 1,100 vehicles on-site in Plaistow, NH
- Every part inspected before listing — no guesswork
- Family-owned salvage yard — real people, not a call center
- 90-Day Warranty on this part
- Fast shipping — most orders ship within 24 hours
- Competitive pricing — save 50–70% vs dealer prices
- Serving New Hampshire, Massachusetts & all 50 states
Ready to order? Call (603) 392-7313 or add to cart above. We are here to help.




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