GST Leak-Proof Rear-Main Seal For SBC and BBC Engines

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“It’s the rear main seal” is something no car guy or gal ever wants to hear from their mechanic. Nestled at the back of the engine between the transmission and crankshaft, replacing a rear main seal is either a costly job if you’re going to pay someone else to do it, or a time-consuming job if you choose to pursue it yourself. It’s one of those often-overlooked parts that can come back to bite you in the back end if you choose the cheap path.

While there’s no such thing as a “forever” rear-main seal, the folks at GST Racing Seals have been in the business long enough to know how to keep these key components intact for many years and races to come. GST has unveiled new rear main seals for big-block and small-block Chevy V8 engines. Based in the UK, GST Racing Seals remains a family-run operation after decades in business, and their focus on engine seals of all kinds is definitely reassuring.

For its rear main seals, GST offers its Polytetrafluoroethylene (PTFE) lined seals that are eco-friendly, low-cost, and low-friction, to ensure maximum performance without breaking your budget. Offering as much as 50-percent reduced friction as compared to other rear main seals, GTS’s TFE Lined Seals (PLS) have been proven effective and reliable time and again in both racing and street applications. This is thanks to a unique one-piece design that eliminates the typical two-piece rear main seal setup. Installation is pretty much the same too, though you do have to do a tiny bit of cutting to allow the seal to flex and seat properly. But other than that? Easy, peasy, peace of mind.

Do it once. Do it right.

About the author

Chris Demorro

Christopher DeMorro is a freelance writer and journalist from Connecticut with two passions in life; writing and anything with an engine.
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