To be fair, there are parts of Clydebank which very much are staunch, though there are others which are more stench than staunch I'll admit. Still a hell of a lot of descendants of shipyard workers in the town and they were largely Rangers. Like most places, the bowling clubs & golf clubs, of which there are many, are almost exclusively Rangers, not to mention the Masonics.
Whitecrook and most of Duntocher would be stench, Hardgate, Parkhall and probably Faifley mostly staunch. Town centre pretty mixed.