I thought I only needed one. I'm so stupid. I found another cheaper one on E-Bay and got it. I finally got around to installing them to discover the big difference. E-Bay set up with a torch, lots of swearing and an 11 ton press. The Moog block has notches on the outside diameter and is significantly larger. I don't know how much pressure it will take you to install it, but it wouldn't do it for me. It's marketed as a 'fix' for a big hole, so I'm sure it will fit in that regard. I hate not using Moog parts as they are the standard of excellence. So if that old ball joint is rattling in your hand, then this will work just fine. If not, look for the OEM type.