The adapter kit contains:

• Adapter housing
• Transfer case input gear, 32 spline
• Transfer case to adapter gasket
• Transmission to adapter sealing ring
• Fastening hardware
• Modular steel mounting base
• Instructions

The adapter offers multiple clocking positions—from near-factory (20° down) to near-flat (3° down)—letting you dial in your drivetrain setup. Please note that oil pan clearance and axle width may affect your ability to use the flattest setting.

Based on Novak’s Universal Series, this adapter includes a modular steel mounting base for easy configuration in custom builds. 

Transmission Compatibility:
There are two output shaft versions for the 6L80E/6L90E that work with this adapter. The stock 4WD version requires no internal modifications; simply bolt it up. The stock 2WD truck version can be used with some external modifications. Other versions may require a replacement output shaft and sealing the transmission’s rear. All years of the 6L80E and 6L90E are compatible.

Installation Details:

• For the 4WD 6L80E, no transmission disassembly is needed. The existing 32 spline output shaft is correct for this kit.
• Installing the matching 32 spline input gear into the transfer case requires partial disassembly—a typical 1–2 hour bench job for a Dana 300, or 2–3 hours for a chain-driven transfer case. While a full rebuild isn’t required, this is an excellent opportunity to address leaks, worn bearings, or tired components.

Transfer Case Compatibility:
This kit fits Dana 300, as well as Jeep New Process 208, 219, 228, and 229 transfer cases commonly found in 1980-up Full Size Jeeps. These transfer cases use the same output shaft adapters, with the Jeep NP208 being an especially popular and reliable upgrade.

For those considering a more modern transfer case, the part-time 231J with an HD SYE kit, the robust 242 (especially AMG versions), or certain Dodge 241 units offer lower gearing, smoother operation, mechanical speedometer outputs, and compatibility with cable shifter assemblies for cleaner installations.

Ideal Applications:
Due to the length of the 6L series transmissions, this adapter is best suited for longer wheelbase Full Size Jeeps—Wagoneer, Cherokee, Grand Wagoneer, J10, J20, and Scrambler. Short wheelbase models may experience difficult driveline angles if significantly lifted.

Control System Note:
These transmissions use an advanced internal TCM (Transmission Control Module) and require factory-style CAN bus communication with the native GM engine for proper operation. While standalone controllers exist, integrating them is complex and outside the scope of typical support.

Fits:

• All with late 6L80E Transmission
• Will not fit Chevy NP208 (Jeep Only)