Bruce,
You have the oldest Suburban among our members. We should all hold you in high regard, if not in awe.
You might want to check with the
one other person who owns (or owned, actually) a Suburban listed in the Gallery. Most likely you have already tried this?
Another possibility is the VCCA discussion boards. You have to join that discussion group, but you do not have to join the VCCA. If you join the VCCA, you are then able to get advice from experts. I do not know if they have an expert with info on a second year Suburban.
Good luck. I hope someone responds with helpful information. Please let us know (and see) your progress.