Description
Part Description
This transfer case was removed from a 2010 GM Silverado 1500 4WD pickup truck and has been thoroughly inspected by our technicians. The unit features floor shift operation and is designed for use with 4-speed automatic transmissions (option M30). This Grade A part is currently on our shelf and 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 use. When your transfer case fails, you may experience grinding noises, difficulty shifting between 2WD and 4WD modes, or complete loss of 4WD functionality.
At 603 Auto Salvage, we maintain over 50,000 quality used parts from more than 1,100 vehicles in our Plaistow, NH facility. Our experienced team can help you find the exact transfer case you need for your GM truck or SUV. Browse our online inventory or contact 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 – Floor Shift, 4-Speed Automatic |
| Interchange # | 665 |
| OEM Part Number | Contact for OEM# |
| Side | N/A |
| Part Grade | A — Grade A – 101K miles, good working condition, inspected and ready to ship |
| Warranty | 90-Day Warranty (Standard coverage for drivetrain components with moderate mileage) |
| Type | Used OEM |
Vehicle Information (Donor)
| Year / Make / Model | 2010 GM TRUCKS SILV15 |
| VIN | N/A |
| Vehicle Stock # | 0915258762 |
Our Testing & Inspection Process
Every part at 603 Auto Salvage is inspected before listing. Here is what was verified on this Transfer Case Assembly – Floor Shift, 4-Speed Automatic:
| ✅ Case Housing Integrity | No cracks or damage to aluminum housing |
| ✅ Input/Output Shaft Play | Minimal play within factory specifications |
| ✅ Fluid Condition | Clean fluid with no metal contamination |
| ✅ Shift Mechanism | Smooth operation of 2WD/4WD engagement |
| ✅ Chain and Gears | No excessive wear or damage observed |
| ✅ Mounting Points | All mounting bosses and threads intact |
Compatibility — What Vehicles Does This Part Fit?
Based on interchange #665, 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 4-speed automatic transmission |
| 2007-2013 | GMC | Sierra 1500 | 4WD models with 4-speed automatic transmission |
| 2007-2014 | Chevrolet | Suburban | 4WD models with compatible transmission |
| 2007-2014 | Chevrolet | Tahoe | 4WD models with compatible transmission |
| 2007-2014 | GMC | Yukon | 4WD models with compatible transmission |
| 2009-2015 | GMC | Terrain | AWD models – verify compatibility |
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?
This transfer case fits 2007-2013 Silverado 1500 4WD models with 4-speed automatic transmission. Verify your truck has the NQG transfer case option and M30 transmission option for proper fitment.
What are signs that my transfer case needs replacement?
Common symptoms include grinding or whining noises when engaging 4WD, difficulty shifting between drive modes, fluid leaks, or complete loss of 4WD functionality. These issues typically indicate internal component wear or failure.
Is this a complete transfer case assembly?
Yes, this is a complete transfer case assembly ready for installation. It includes all internal components and the case housing but may require transfer of your existing shift linkage and mounting hardware.
Can I install this transfer case myself?
Transfer case replacement requires lifting the vehicle, supporting the transmission, and disconnecting driveshafts. This job typically requires mechanical experience and proper tools. Professional installation is recommended for most DIY mechanics.
What fluid does this transfer case use?
GM transfer cases typically use Dexron automatic transmission fluid or specific transfer case fluid. Check your owner’s manual for the exact specification and capacity requirements for your vehicle.
How much does this transfer case weigh for shipping?
Transfer cases typically weigh 80-120 pounds and require freight shipping. We can provide exact shipping costs based on your location once you’re ready to purchase.
Related Parts & Resources
OEM Part Numbers & Cross-Reference
Looking for this part by number? Here are the reference numbers:
| GM Part Number | Contact for OEM part number |
| Transfer Case Option | NQG |
| Transmission Option | M30 (4-speed automatic) |
| Interchange Group | 665 |
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 | $300-$500 | 30–60 days | Varies in quality and testing |
| 603 Auto Salvage | $200.00 | 90-Day Warranty | Tested, Grade A, ships in 24hrs |
Installation Notes
- Support transmission with jack before removing transfer case to prevent damage
- Mark driveshaft positions before removal to maintain proper balance during reinstallation
- Replace transfer case fluid and filter during installation for optimal performance
- Apply thread locker to mounting bolts and torque to GM specifications
- Test 4WD engagement in both high and low range after installation
🔍 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 LTL 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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