SHAFT 2WD HIGH STRENGTH SONNAX 74678L-HD 4L60E 4L65E 4L70E

Output shaft failure is common as power levels are increased in GM 4L60-E, 4L65-E and 4L70-E units. Sonnax heavy duty output shaft 74678L-HD for 2WD and Corvette units is precision engineered and manufactured for unbeatable performance in high-horsepower street and strip builds. The shaft features many unique refinements available only from Sonnax, including a torsional design that allows energy to be absorbed, reducing peak loads to critical areas.

• High-strength 300M steel shaft with rolled splines
• Specially heat-treated and processed for maximum toughness
• Torsional design absorbs energy, reducing peak loads to critical areas
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