[6] Walsall continued to run trams to Willenhall until 1928, when they were withdrawn and a joint motorbus service was introduced between the towns.

To run the service they bought two three-axle double-deck vehicles from Associated Equipment Company (AEC) and two from Guy Motors.

Wolverhampton had used single-deck vehicles on the route, because there was a low bridge at Horseley Fields, but this was reconstructed to allow a through service to run from 16 November 1932.

During the Second World War, traffic levels rose, and to meet the demands, the Corporation managed to obtain 12 utility-bodied Sunbeams between 1943 and 1946.

The employment of a new general manager, R Edgley Cox, in 1952 was the start of a new phase for the network, as he had his mind set on upgrading and extending the system.

An experimental three-axle Sunbeam S7 was acquired in 1953, with a rear entrance, a central exit, electrically operated doors and a desk at which the conductor sat, collecting the fares as passengers boarded.

When the first of these entered service, the legislation had not been changed to allow them to operate, and a special dispensation had to be obtained from the Ministry of Transport.

[11] In the early 1930s, the country had been hit by depression, resulting in large scale unemployment, which had been relieved by the Government assisting in the construction of new council housing estates.

It included new offices for the Corporation Transport department, and although it was not officially opened until 23 September 1937, buses had been using it for over two years by that time.

[13] Faced with the construction of new housing to the north of the town, and the need to provide a public transport service for the residents, the Walsall Corporation Act (1954) was obtained, to authorise extensions to the system.

It replaced a motorbus service, which was overstretched, as in peak periods there were two buses every five minutes, and the larger capacity of the trolleybuses relieved the situation.

Another service to the west of the Bloxwich route opened on 12 September 1955, terminating at the Gypsy Lane Estate, which was later known as Beechdale.

Although Wolverhampton had already decided to abandon trolleybuses, an agreement was reached where the joint service between the towns would continue until at least 1967, but the motorway severed the route, and it closed on 31 October 1965.

[15] In common with other operators, the Corporation was facing rising costs for electricity, and difficulty in obtaining spare parts to maintain the trolleybuses.

Optimism was still high within the Corporation, and they planned to obtain another Act of Parliament in 1969 to allow them to construct five short extensions to the system, mainly links to run between existing routes.

[9] When replacement of the pre-war vehicles became necessary, Walsall stayed with their local manufacturer, buying a batch of ten Sunbeam F4 models in 1950-51, Nos.334 to 343, but the arrival of Edgley Cox as general manager in 1952 signalled the start of a period of innovation.

There was also a central exit, with a straight staircase opposite it, but the design was not well-received, resulting in the vehicle being rebuilt with just a rear entrance, after which it was renumbered.

Most entered service between November 1954 and June 1955, but delivery of the final new vehicle that the Corporation bought was delayed, as No.872 was exhibited at the 1956 Commercial Motor Show, and did not arrive until 14 October 1956.

The batch were fitted with automatic acceleration equipment, while the bodywork was designed to give a streamlined appearance, with the weight and cost reduced as much as possible.