S.C. Ruffey is a troublesome ballast car.
- 1996 (thin wheels, static plastic ballast, and black wheels)
- 1997 (thick wheels)
- 2006 (new design with magnetic removable ballast, and orange wheels)
- 2017 (black wheels, hollow plastic body, pop-up feature, only in Demolition Team)
- 2018 (new face, spark decorations, only in Dynamite Ryan)
- A prototype S.C. Ruffey seen in the 1996 Yearbook features flat magnets and a much smaller face.
- Despite being discontinued in 2001, S.C. Ruffey continued to be sold separately in the UK for many years.
- 2006 S.C. Ruffey has a slightly longer chassis than other similar trucks.
- The first prototype of the Troublesome Trucks and Sweets depicted S.C. Ruffey as the Sodor Sweet Shoppe Troublesome Truck.
- The 2018 S.C. Ruffey's from Dynamite Ryan has a black plastic chassis, and as such has no exposed wood.