* Frame and Suspension Differences: The frames of 2WD and 4WD Dakotas are different. The 4WD frame has reinforcements and mounting points for the transfer case, front differential, driveshafts, and suspension components that are simply not present on the 2WD frame. You'd essentially need a donor 4WD Dakota frame.
* Drivetrain Components: You'd need a complete 4WD drivetrain, including:
* Front differential: This is a major component requiring installation and proper alignment.
* Transfer case: This is the heart of the 4WD system.
* Driveshafts (front and rear): These must be the correct length and matched to your axles.
* Front axles and hubs: These connect to the wheels and transfer the power.
* Axle housings: Often integrated into the suspension setup.
* Control arms and other suspension components: The front suspension will be quite different on a 4WD.
* Wiring and computer modules: The 4WD system requires its own wiring harness and may require reprogramming of the vehicle's computer.
* Body Modifications: While not always necessary, there might be slight body modifications required for clearance and fitment of the new components.
* Labor Costs: The labor involved in such a conversion would be extremely high, potentially exceeding the value of the truck. This is specialized work requiring a mechanic with significant 4x4 experience.
* Parts Sourcing: Finding used parts in good condition could be a challenge. New parts would be very expensive.
In short: The cost and complexity of this conversion are so high that it's almost always cheaper and easier to simply purchase a used 4WD Dodge Dakota. The amount of work, specialized tools, and expertise required make this a project unsuitable for most DIY mechanics. Even professional shops would likely refuse this due to the impracticality.
