This weekend, I'm replacing my 2008 Chrysler Town & Country's rear brakes (rotor, calipers, and pads.) The mechanic that inspected the vehicle said the bearings were OK. But, since I am going to be taking apart that area anyway, due to the excessive amount of rust on everything there, I'd like to do anything I can to improve the condition of the wheel bearing & hub assembly.
I have photos of a compatible assembly below, so you can see the piece I'm talking about.
Unlike the front assembly, the rear assembly doesn't have an "open hole" going all the way through the middle.
I'm going to remove the outside rust as well as I can, especially where it makes contact with the rotor.
Would it be fairly easy for me to go further by taking the assembly off? (Ignoring the difficulty from the rust holding onto it, since I already know about that.) Like go inside the assembly, remove the existing grease, and pack it with new grease? And examine what's in there to see how worn it looks, and if there's excessive metal flakes? Maybe that cap on the back just comes off, as it looks like it has an access lip to it...
I've watched several videos on cleaning up and packing wheel bearings, but theirs looked quite different, so I want to ask if mine is a sealed piece that I shouldn't think about getting into, perhaps done that way since the unit has to do with ABS as well. The only videos I can find of these rear ones are of people just replacing the part.
I'd love to know now if there's no point in taking it off, so I'd just clean up the outside-facing side of rust, and not have to get the thing off with all the rust holding it on.