Making a terrific racket that could be heard long before they came into view, and even longer after they had passed, 37174 & 37375 pass through the diminutive station at Knucklas on 28 May 2000 with the diverted 6Z83 Llanwern to Margam steel empties. This was an extremely long detour via the Central Wales Line caused by weekend engineering works at Bridgend.