In 1946, the PH were converted to artillery and renamed 1 Anti-Tank Regiment (PH).
 When the Army was reorganised in 1960, for internal security duties, the regiment was converted to armour and reverted to its original name of Pretoria Highlanders.

The regiment was assigned to the 7th Division's 73 Motorised Brigade.
In 1946, the PH were converted to artillery and renamed 1 Anti-Tank Regiment (PH).  When the Army was reorganised in 1960, for internal security duties, the regiment was converted to armour and reverted to its original name of Pretoria Highlanders.
The regiment was assigned to the 7th Division's 73 Motorised Brigade.
Pretoria Highlanders