The nuclear structure of 17 Ne has been studied by the 20 Ne͑ 3 He, 6 He͒ 17 Ne reaction at 70 MeV. Thirteen levels were identified in 17 Ne, and angular distributions have been measured for the first time for this reaction. Based on the observed transferred angular momentum dependence of the angular distributions, a spin-parity assignment has been made for several states in 17 Ne. With the inclusion of the data on 17 Ne, Tϭ 3 2 quartet analog states have been completed for six levels in the Aϭ17 isobar system. The level shifts in these Aϭ17 nuclei are analyzed in terms of the isobaric multiplet mass equation ͑IMME͒. The results of such an analysis show a slight linear dependence of the b and c coefficients of the equation on the excitation energy. The coefficients for the positive parity states seem to follow a different systematics than the negative parity states, suggesting that these parity-dependent level shifts are reflecting the structure change. These coefficients of the IMME are discussed. ͓S0556-2813͑98͒01707-5͔PACS number͑s͒: 21.10. Hw, 25.55.Hp, 27.20.ϩn