Thanks to my knowledge gained in practice i can confidently say that this PRODUCT is one of the best in the market .The bearings have drastically improved the ride quality of my Wrangler, making it a joy to drive on bumpy roads. the seals are also top-notch and have held up well against wear and tear. The only con is that installation can be a bit tricky for beginners. Overall, an excellent investment for anyone looking to improve their car's performance..