Unbolting 904 from 318 (anything to watch for?) Also question about rear axle (not 8 3/4)

One learns how to avoid all that big mess after having to clean up a big mess left in the driveway..... junking out (pulling drive trains out of 4 door diplomats ETC....) seems to be the best teacher. I just did one (1985) car for running gear parts........Been there done that with transmission dripping down your arms.. etc... Texas Red