The original TOPS classification for the DTS vehicles was Class 149.
|Type||Seats||Lot No.||Diagram No.||Weight|
|55020 - 55035||DMBS||65 2nd||30518||512||37t 8cwt|
|56280 - 56289||DTS||93 2nd||30519||513||29t 7cwt|
|89 2nd (gangwayed)||513A (gangwayed)|
Only the DTS vehicles were gangwayed, they couldn't use the gangway working with a bubble car but could be used with other classes.
The DTS vehicles were renumbered to 54280-9 circa 1983.
Three vehicles were named while in the care of Silverlink, the names previously were carried on withdrawn Class 117 vehicles:
55027 - Bletchley TMD
55029 - Marston Vale
55031 - Leslie Crabbe
Worksplates were carried on the vehicle solebars to identify the builder and lot number. Many of the worksplate images on the website are by Simeon Gaskell and John Horne.