Yeah it's close to 6'', 5. 7 sounds right. Anything less and the tires stick way out and looks stupid. You will have a tough time finding a wheel with atleast 5. 5'' backspacing thats smaller than 18''. My bro bought 18X9. 5'' eagle alloys with 6'' backspacing for his 02' and I bought his stock wheels from him. Those where the only ones he could find that looked decent and had the right backpacing.