A small strain triaxial apparatus was developed which is capable of measuring accurately the small strain behaviour of soil. The system utilized three submersible miniature linear variable differential transducers (LVDTs), mounted on the periphery of the soil specimen. Furthermore, a bender element system was incorporated to provide an additional means of measuring the small shear modulus of the soil. The system was used to measure the small strain behaviour of undisturbed Auckland residual soil, which occupies much of the Auckland region and areas to the north. Auckland residual soil is characterized by the presence of macro-voids, as confirmed by the images from X-ray CT scanning. Based on the test results, G_max values obtained from LVDT measurement matched closely the results from bender element measurements, confirming the capability of the integrated small strain testing apparatus.