There appear to be two different types, just the upper (30666271) and the entire aluminum assembly (31262066 & 67). Is one better than the other? All the instructional videos I see recommend just the upper be replaced.

 

You only need to replace the rubber bushing part (top one). They are different for AWD and FWD just a heads up. Some sites, you need to lookup the R to get the AWD style.

8646101 & 9200306 are the OE #s for AWD mounts