Make sure you ask the TAFE about it, I'm sure they will be happy to help you.
TAFE oftentimes have it set up so you can complete X amount of TAFE study, and get Y amount of time off your uni degree. It really depends on what field you're going into, so you should ask the TAFE what pathways they have available.
For example, you can do a Diploma of Software Development (1 year 6 months) and then move straight into year 2 of an IT degree at UWS. The numbers in that example are probably wrong, but it's something like that.