NP246 Transfer Case for GM 99-2002 1500 w 4L80E

🔧 NP246 Transfer Case – 27 Spline Input (4L60E)

Fits 1999–2007 GM 1500 Trucks & SUVs (5.3L, 4.8L, 6.0L)

💀 Built for Reliability. Ready for the Road.

This NP246 (NP8) electronic AutoTrac transfer case is designed for GM 1500 series trucks and SUVs equipped with the 4L60E transmission and 27 spline input shaft. Fully rebuilt and tested, this unit is ready to handle daily driving, towing, and on-demand 4WD operation.

Whether you're replacing a worn-out unit or upgrading from a failed case, this transfer case is built to deliver smooth engagement, proper torque distribution, and long-term durability.

⚙️ Key Features:

• Fits 4L60E applications ONLY (27 spline input)
• Electronic shift (push-button) AutoTrac system
• Modes include: 2HI, AUTO 4WD, 4HI, 4LO
• Fully disassembled, cleaned, and inspected
• Updated internal components for improved reliability
• Chain, bearings, seals, and wear items replaced as needed
• Encoder motor compatibility (motor not included unless selected)
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🔄 Common Issues We Address:

• Pump rub wear (case damage prevention updates applied)
• Chain stretch and slipping under load
• Worn bearings and seals
• Shift hesitation or engagement issues

🧪 Tested & Ready:

Every unit is thoroughly inspected and tested to ensure:

• Proper shifting through all ranges
• Smooth engagement
• Leak-free operation
• 
  

🚚 Fitment:

• 1999–2007 Chevy Silverado 1500
• 1999–2007 GMC Sierra 1500
• Tahoe / Suburban / Yukon 1500
• Must have:
• 4L60E transmission
• 27 spline input
• Electronic push-button 4WD (NP8)

⚠️ Important Notes:

• Requires AutoTrak II fluid (blue fluid)
• Verify spline count and application before ordering
• Encoder motor and external electronics sold separately unless selected