Yukon Gear & Axle YA W39255 4340 Chrome-Moly Inner Axle Shaft 30 Spline LH

The Yukon Gear & Axle YA W39255 is a high-performance left hand inner axle shaft designed for 1979 and newer GM 8.5-inch ring gear trucks and Blazers. Engineered from premium 4340 Chrome-Moly steel, this axle delivers up to 50% greater strength compared to factory axles, making it ideal for extreme performance applications involving oversized tires, lifted suspensions, and high horsepower builds.

Key Specifications:

• Length: 35.46 inches
• Spline Count: 30 spline
• Position: Left hand (driver side) inner axle
• Material: 4340 Chrome-Moly steel
• U-Joint Series: 5-760X
• Application: GM 8.5-inch rear axle (1979 and newer trucks and Blazers)

Performance Features:

• Manufactured using advanced heat-treating processes for maximum durability
• Premium 4340 Chrome-Moly construction provides superior tensile strength
• Precision machined to OEM specifications for proper fitment
• Ideal for rock crawling, off-road racing, and street performance applications
• Engineered to handle the stress of larger tire diameters and aggressive driving

Warranty Coverage:

• Limited Lifetime warranty against manufacturing defects and axle breakage
• Warranty valid for original purchaser only (non-transferable)
• No questions asked replacement on first warranty claim
• Subsequent claims eligible for replacement or refund at manufacturer's discretion

This axle shaft is a direct replacement upgrade for enthusiasts seeking bulletproof reliability in demanding off-road and performance applications. When paired with quality differential components and proper installation, the YA W39255 provides the strength needed to withstand extreme torque loads.