I was born in Cambuslang in 1944 and got to know the area well, but I never heard of this street. Sounds as if it was named in the 1800s after the Boer war in South Africa. Perhaps it was a miner row in the Newton area?
John,
Pretoria Street was at the southern end of Silverbanks Street, and ran parallel to Glasgow Road. It had only two closes - one on either side of and round the corner from Silverbanks Street. Pretoria Street looked out onto the old quarry and across to Dukes Road, and in the other direction, about 100 yards away, down Silverbanks Street across Glasgow Road and through the railway yard and over the railway line was the Hoover factory.