 The unique 40-year-old, three-car Altrincham Electrics were replaced by 12-year-old, four-car Class 304 25 kV AC EMUs, based at Longsight depot.Three of the 1931 stock centre trailer cars were preserved and two are now undergoing restoration at the Midland Railway - Butterley in Derbyshire.However none of the motor coaches was preserved.