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Specifications

The 6600 Countershaft Second Gear from S&S Truck Parts (Newstar) is a critical transmission component designed for heavy-duty truck applications. It plays a key role in power transfer and gear ratio performance, helping ensure consistent shifting and reduced drivetrain stress. Precision-manufactured for accurate fitment, this gear supports extended service life and dependable operation. Sold by Wofford Truck Parts, it is an excellent choice for professional mechanics and fleet maintenance seeking quality transmission replacement parts.
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