I installed these on a 2017 GMC Sierra SLT with a 3 1/2"" lift and oem 20"" wheels. I did have to install a 1/4"" wheel spacer but they great work to replace the cheesy oem stamped steel uca's. They will only work for a lifted truck, they are not a uca replacement for stock height trucks.1. Will they replace stamped steel and aluminum uca's - YES2. Are they greasable balljoints - YES3. Will they work on stock height trucks - NO4. Can I run stock 20"" wheels - YES, with wheel spacer5. Are they easy to install - YES

Installed on 2011 Cadillac Escalade with a 7"" FTS lift. Installed easily and massively improved ball joint angle. Construction is solid and much improved over factory. Even has the bolt hole tapped for the suspension level sensor. Vehicle rides and handles much better now, highly recommend!

Perfect!

Perfecto y facil de instalar en una Silverado 2011 con 2"" leveling kit por q no lo avia instalado antesNo soy mecanico pero es facil de hacerlo en 2 horas lo hice

Sits perfect with lift spindles an the rc loaded strut

Went on easy no need to remove strut or loosen just put a jack under lower arm jack up will compress spring enuff to get bolt out done simple

When your stock ball joints give up you really should consider these. They are truly essential on lifted trucks that are still using the factory stamped steel or aluminum control arms. They are twice as thick as the factory aluminum ones and 3 times that of the stamped steel ones. The ball joints pocket and boss are canted to return the ball joint to its factory angle. Great job RC!