48re Sonnax Extreme Intermediate

Sonnax Extreme Heavy Duty Intermediate Shaft 300M Ultra High-Strength Steel • Rolled Splines The Sonnax Extreme Heavy Duty Intermediate Shaft is engineered for high-torque diesel and performance transmission builds where stock shafts become a known failure point. Manufactured from 300M ultra high-strength steel and finished with rolled splines, this shaft delivers exceptional durability, fatigue resistance, and fracture strength under extreme load. Rolled splines improve the grain structure of the material, significantly increasing spline life and resistance to twist or shear compared to cut-spline designs. Combined with Sonnax’s precision manufacturing standards, this shaft is built to survive aggressive tuning, heavy towing, and high-horsepower applications. Features & Benefits Sonnax Extreme Duty Design Manufactured from 300M ultra high-strength steel Rolled splines for increased durability and fatigue resistance Superior torsional strength vs. OEM and cut-spline shafts Precision machined for proper fit and clutch engagement Designed for high-torque diesel, towing, and performance builds Direct replacement for OE intermediate shaft Ideal For Built and performance transmission builds Heavy towing and work trucks High-horsepower and tuned applications Preventing common intermediate shaft twist or spline failure This Sonnax intermediate shaft is a proven upgrade for builders who demand reliability, strength, and long-term durability in extreme operating conditions. please note this one does NOT require machining.