it seems after 1982 GKN Defence was formed from GKN Sankey

of official site

"GKN was now focused on a few growth businesses: Driveline, Chep, Cleanaway, Aerospace/Defence and Off-Highway, which had developed from the original Sankey operation."



https://www.gknaerospace.com/about-us/history/


maybe change all of their products to just GKN to remove confusion

https://www.imcdb.org/vehicles_make-GKN+Defence.html