AP Astro Pneumatic Tool Company Ball Joint Puller Remover for Subaru – 78620A, 24mm drive with 5/8-18 slide-hammer adapter

If you're working on Subaru suspension repairs, the 78620A streamlines removal of seized, rusted, or corroded bolt-in ball joints. Built to work on many Subaru models, it slips into place for use with a deep 24mm socket and an impact or hand wrench, or adapts to a slide hammer via the included 5/8-18 thread adapter. The tool's sliding-pin, non-rotating mechanism concentrates force in a single direction to reduce stud twisting and lower the chance of breakage during extraction.

How does this puller work on Subaru vehicles?

The puller clamps to the ball joint housing while a sliding pin drives straight through the joint, applying axial force to extract the pressed stud. Its geometry fits common bolt-in ball joints found on many Subaru front suspension setups, letting you work safely with the vehicle on jack stands. The included thread adapter lets you switch to a slide hammer when extra impact force is required.

• Operates with a deep 24mm socket and impact or hand wrench
• Includes 5/8-18 adapter for slide-hammer compatibility
• Designed for bolt-in joint geometry used by Subaru models

Will this reduce the risk of breaking the ball joint stud?

Yes — the 78620A's non-rotating sliding pin pulls the stud straight out instead of twisting it. That single-line pulling motion lowers bending and torsional stress on the stud, which helps avoid the common problem of seized studs snapping under torque. Using a controlled axial extraction is easier on both the joint and surrounding suspension parts.

• Sliding-pin design prevents stud rotation during pull
• Reduces torsional and bending stress on the stud
• Cleaner extraction limits collateral damage to control arms

What Subaru models and years are compatible?

The tool was engineered for bolt-in ball joints on a wide range of Subaru models. It fits popular models spanning multiple decades, including the Legacy, Forester, Impreza, Outback and Baja. Always verify your vehicle’s joint type before purchase to ensure compatibility with a bolt-in (non-press-in) ball joint configuration.

• Baja — 2003 and newer
• Forester — 1998 and newer
• Impreza — 1993 and newer
• Legacy — 1990 and newer; Outback — 2000 and newer

How should I use the 78620A safely in my garage?

Set the vehicle securely on jack stands and confirm suspension components are stable before beginning. Attach the puller, choose either a 24mm socket drive or the slide-hammer adapter, and apply steady force to extract the joint. Wear eye protection and work gloves; inspect surrounding parts for corrosion or damage that may need attention once the joint is removed.

• Use stable jack stands and wheel chocks for vehicle safety
• Start with a hand wrench, switch to impact or slide hammer if necessary
• Wear protective gear and inspect suspension components after removal

Who is this for? The Astro Tools 78620A is aimed at professional mechanics, DIY enthusiasts, and Subaru owners who encounter stubborn bolt-in ball joints during suspension service. If you routinely work on Subaru front-end repairs or need a reliable extractor that reduces the chance of stud breakage, this tool provides a focused, model-aware solution that pairs with standard garage equipment like deep sockets and slide hammers. Confirm your joint type and model year compatibility before purchase to ensure a proper fit.