The custom-designed GMC C3500 Rocker Shaft Spring Kit bolts securely in your C3500 to hold the rocker shafts in constant tension during hard acceleration. This ensures every combustion cycle has full strength behind it. In every GMC powerplant, the Rocker Shaft Spring Kit has been a proven performer for decades as it holds the shaft tighter than the old spacer design and will not loosen after long hauls or climbs at high rpm like the old spacer. The kit has been designed to fit the factory shaft without modification and instantly centers both rocker arms to maintain valve lash. It also crushes sideways drift that can bend pushrods and break rockers on early model 1991 C3500 workhorses, mid-nineties C3500 crew cabs, and later high-capacity C3500 chassis variants. Each kit sprang from a legacy of durability that shows on steep grades and stop-and-go city runs. With the ideal alignment, the Rocker Shaft Spring Kit ensures a constant flow of oil, lowering friction and allowing the cam, pushrods, and valves to work in unison, which results in cooler running temperatures and improved fuel efficiency. The safety standards also enhance because a well-synchronized valve train prevents a misfire that could stall the truck when towing and merging. Owners value the consistent tolerances achieved in the machining of each Rocker Shaft Spring Kit, resulting in smooth installation and reliable performance, mile after mile. The distinct coil shape of this Rocker Shaft Spring Kit allows for an even distribution of load all around the shaft. Thus, it can withstand metal fatigue under high-temperature situations on the entire GMC lineup. GMC owners have confidence in the resilience of GMC vehicles and select this Rocker Shaft Spring Kit for regular service. Whether your C3500 dually transports construction equipment or your weekend C3500 camper case is safeguarded by this component, GMC engines are stabilized like no other. This Rocker Shaft Spring Kit is a smart confidence-boosting upgrade for any GMC driver who relies on this tough truck for work or recreation.
Each OEM GMC C3500 Rocker Shaft Spring Kit we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.