A replacement yoke & universal joint kit designed for use with IAG transfer gear sets (IAG‑DRV‑1000 and DRV‑1010). It includes everything you need to replace wear-prone drivetrain components as part of routine maintenance or after heavy use. 

🔧 Purpose & Role

• Wear item replacement: The yoke and U‑joint on the transfer gear set experience high stress—especially under aggressive driving or drag racing—so this kit is essential to restore optimal drivetrain function. 

• Maintains drivetrain strength: Keeping these parts fresh ensures that the integrity of your drivetrain system remains intact, avoiding potential failures down the line.

🧩 Included Components

• Heavy‑duty driveshaft yoke compatible with IAG DRV‑1000/1010 gear sets

• Matched universal joint assembly, complete with snap rings

• Overall unit constructed from high-quality steel for durability 

🚗 Vehicle Fitment

Compatible with Subaru WRX STI models including:

• 2004–2014 Impreza WRX STI

• 2015–2021 WRX STI

• Addresses fitment across both “1:1” (04‑05) and “1.1:1” (06‑21) transfer gear sets when used with the correct IAG kit 

🏁 Maintenance Recommendations

• Regular inspection: Inspect yoke and U‑joint health during gear replacement or after intense launches.

• Service interval: Replace whenever play is noticed, noise arises, or during a full rebuild—especially on performance-built cars 

• OEM match: Specifically replaces the yoke kit included with IAG transfer gear sets—ensuring proper fit and performance.

✅ Key Benefits

• Ensures peak drivetrain performance and reliability

• Restores wear points without needing a full gear set replacement

• Cost-effective upkeep compared to replacing the entire transfer gear assembly

• OEM-designed, with full compatibility and prefitted tolerance for IAG components

🧠 Final Take

If you're running IAG's performance transfer gears (DRV‑1000/1010) and hitting the track, drifting, or hauling serious torque, this kit is essential maintenance. Skipping it can lead to premature wear or U‑joint failure. Swapping out the yoke & U‑joint is a wise investment to safeguard your gearbox and drivetrain system.