Hi Barry,
You are asking a question about an E34 M5 on an F10 M5 forum.
Try asking on this forum :
http://www.m5board.com/vbulletin/e34-m5-discussion/
There are several E34 M5 experts on it.
Also actually I recently bought an E34 M5 too. I'll try and take a photo of the windscreen wiper set up on it. It is a very late 3.8L car thought, 1995 MY