Trailers from these railcars were converted from existing GNR steam coaches and retained their GNR numbers (Except vehicles 8 and 9, later UTA 585+586, which were built new as AEC driving trailers). Those that were acquired by UTA became 554 555 580 581 582 585 586 593 (The gaps being due to their numbering in the same series as BUT trailers). Kitchen Car 166 was converted to an AEC trailer in 1967 and retained its number
Trailers from these railcars were converted from existing GNR steam coaches and retained their GNR numbers (Except vehicles 8 and 9, later UTA 585+586, which were built new as AEC driving trailers). Those that were acquired by UTA became 554 555 580 581 582 585 586 593 (The gaps being due to their numbering in the same series as BUT trailers). Kitchen Car 166 was converted to an AEC trailer in 1967 and retained its number