As happened to my best fried at Primary, they go to a good secondary modern, are succesful in their GCE's (as they were then) and then he rejoined me in the 6th form at the Grammar School and went off to Uni.
Just because you went to a secondary modern it didn't mean you were consigned to the scrap heap.
The school involved was Fearns (the base for the Pennine Bridleway) and it was a much better school in the 60's and 70s than it is now as a "Community Sports College".
It used to be a secondary school and now it's a second rate school with parents chosing Hassy High, Alder Grange and Whitwoth High ahead of it - something that would never have happened 30 years ago.