It's not a regular occurrence that you discover you need a replacement Main Bearing Set to fix your vehicle. Pontiac car, truck, or SUV enthusiasts have become used to a certain level of dependability when driving their Grand LeMans around town. Obviously, you didn't buy your Grand LeMans unless you understood you would be getting performance and unique styling both impeccably combined into one automobile. While it's not hard to locate replacement parts for Pontiac vehicles, these days only the highest quality are required to maintain your car or truck.
A lack of proper lubrication for your internal engine components can result in intense friction and heat and lead to total engine failure. The places where the most rotary movement occurs in your engine are where the crankshaft spins through the main bore, which is why you will find your Pontiac Grand LeMans main bearings there. For decades, a metal alloy material called Babbitt has been used to make engine main bearings, which is just slightly softer than the forged or cast crankshaft and the main caps in your Pontiac Grand LeMans. When properly lubricated, friction and heat are minimized as the main bearings protect your internals for, hopefully, the life of your car or truck.
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