This front & rear cover and oil pan alignment tool kit is a perfect fit for GM LS series engines, covering 4.8, 5.3, 5.7, 6.0 displacements and models including LS1, LS2, LS3, LS4, LS6, LS7, L99, LS9, LSA, LQ4, LQ9, L76, L92.

Crafted from solid aluminum alloy, this engine front & rear cover alignment tool kit allows easy calibration of the engine front and rear covers for precise centering. It facilitates the standard installation of oil seals and prevents leakage from the source. In addition, without the oil seal installed, the tool can center the cover at the front oil seal position or achieve accurate positioning with the inner diameter of the oil seal bore in the cover. A centered cover greatly reduces the risk of oil seal leakage.

Mimicking the fitting shape of the balancer and oil pan, the tool delivers high-precision alignment for the oil pan and engine front cover, and is designed for use with the front cover alignment tool. For LS series engines, the oil pan is a load-bearing component that enhances block rigidity, so it cannot be simply installed directly. The engine front & rear covers must be carefully aligned with the oil pan before assembly.

Made of high-quality aluminum alloy, the tool features high strength, corrosion and rust resistance, and impact resistance. With precisely controlled machining tolerances, it ensures perfect alignment effect and long-term stable and durable use. It is an ideal tool for engine builders and mechanics to replace the front and rear main oil seals of GM LS series engines.

Fits all LS series engines covering 4.8, 5.3, 5.7, 6.0 displacements and models including LS1, LS2, LS3, LS6, L99, LS4, LS9, LSA, LQ4, LQ9, L76, L92; suitable for GM LS1, LS2, LS3, LS7, LSA and LS9 V8 engines equipped with front and rear oil seals with inner sealing lips; enables precise alignment of the rear cover to ensure the rear main oil seal is centered during installation.

Please double-check to confirm the compatibility of this tool with your vehicle/engine before purchase.