I usually smear a bit of copper grease on the drum where it contacts the wheel Bryan,seems to help.I have a feeling that the rears haven't been off for a long time! Luckily the brakes and back-plates look OK.
Van looks good Steve, but I hope you haven't neglected the Zed!
Not neglected Bob,the van was the trial process......Bob's next .
Used Autoglym machine cleaner,it's good stuff.
Steve