I remember buying WBM 451X when l was an Own Driver must have been about 1984/5. I had a Tag axle put on the back so l could pull Norfolk Line trailers. Sadly we were involved in a fatal head -on collision the other chap fell asleep at the wheel on the A47 just before East Derham in 86. The Truck was a right-off and l think it got sold as scrap.