The Hendrickson S-38378 or S38378 is an 8x9mm Offset suspension part designed for heavy-duty truck applications. This genuine Hendrickson component is built to the manufacturer’s original specification, making it a direct fit for the systems it was engineered to serve. The 8x9mm offset designation identifies a specific geometry that distinguishes this part from standard non-offset configurations. Pro Gear and Transmission carries genuine Hendrickson suspension parts. Call us to confirm proper fitment for your specific axle and suspension setup.FeaturesGenuine Hendrickson part number S-38378 or S383788x9mm offset geometry for specific suspension applicationsHeavy-duty truck suspension componentCall Pro Gear and Transmission to confirm fitment for your chassis