The fit was perfect, no leaks. Were even pre-lubricated where the axle slides! I installed them on my 2013 Silverado with a 10 bolt rear triangle. Make sure the surface is clean and free of burrs after removing the old gaskets before beginning installation. These are seals of quality, preparation is the key to their lives. I've put in 140,000 brutal miles with my OEM seals, tons of towing, towing, hot Florida summers in 100+ degrees and maybe a few races ๐ค even then there were just a few drips here and there. These seals are so cheap and easy to replace, just stick with the original equipment and buy them when you need them.
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