The GMC Jimmy Rocker Shaft Spring Kit maintains effective valve control by fastening each rocker arm to its shaft to ensure that the intake and exhaust valves are opened and closed at the precise moment required by the camshaft. The Rocker Shaft Spring Kit plays the dual role of a clamp and spring, pressing the rocker arms together, keeping lash within specifications, and maintaining the seat pressure essential for valve spring performance to effectively seal combustion chambers. When looseness happens, the lash widens and pounding can twist pushrods or snap rockers. The Rocker Shaft Spring Kit found in early GMC SUVs with shaft-pivot valvetrains contains multiple rockers on one common bar. On the other hand, the later Jimmy models which placed rockers on individual studs utilize a more compact version of the Rocker Shaft Spring Kit. This spring kit is designed for each pair of arms. The first style spreads the spring force out across the shaft. Meanwhile, the second type concentrates the force near every arm. As a result, this enables faster adjustment. Whenever miles and heat weaken valve springs, installing a new Rocker Shaft Spring Kit brings sharp throttle response back and keeps your GMC Jimmy pulling hard up the rev range.
Each OEM GMC Jimmy 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.