In the spring of 1958, Scania-Vabis introduced a new generation of trucks, with newly designed six-cylinder engines,[2] stronger chassis components and a new, more spacious and comfortable cab.

For real heavy duty work Scania-Vabis offered a version with tandem drive rear axles.

Since the 345 model had disappeared in 1939, Scania-Vabis had only built conventional trucks, as it was the most popular design in the Scandinavian market.

By the early 1960s, many European countries introduced regulations limiting the maximum length for truck and trailer.

The LB cab was fixed, which made access to the engine for service and maintenance difficult.