Installed this top part and matching Moog rear kingpin bushing on a '98 Cadillac Deville. After 7,000 miles, this part of the upper rear knuckle bushing has come loose and is no longer holding the knuckle properly in place. The driver and passenger side bushings were replaced and both failed at 7,000 miles. Extremely low durability for a suspension component. Since Moog supplies an unreliable product, I'm trying an alternative brand to see if the aftermarket holds up. I cannot recommend this…