To get automatic engagement of your front axle, you'll need to replace the entire hub assembly with a set designed for automatic locking. This is a significant modification and involves:
* Determining Compatibility: You need to find automatic locking hubs that are specifically designed for your vehicle's make, model, and year. The bolt patterns, axle shaft size, and other specifications must match perfectly. Improper parts can lead to damage or failure.
* Part Sourcing: You'll need to purchase the new automatic locking hubs. These can be found from automotive parts stores, online retailers, or through specialized 4x4 shops.
* Installation: This is typically a mechanical process involving removing the old manual hubs, installing the new automatic hubs, and potentially making adjustments to the associated vacuum or electrical system (depending on the type of automatic hubs). This usually requires some mechanical aptitude and possibly specialized tools. If you're not comfortable working on your vehicle's drivetrain, it's best to have a qualified mechanic perform the installation.
* Potential Additional Modifications: Depending on your vehicle's setup, you might need to also address related components, such as vacuum lines (for vacuum-actuated hubs) or wiring (for electrically-actuated hubs).
In short: It's not a simple change; it's a complete replacement of a critical drivetrain component. Proceed with caution, and if you lack experience, seek professional help.