yeah, get them brand new. I bought and set (3.73) and the UPS website says they will be here friday....WOOT
anyways. yes you have a 8.8 rear end and you have 3.27's stock i think. you could get 3.55's, 3.73's, 3.90's (motive), 4.10's, 4.30's etc etc... i would go with FRPP but hey thats just me. I have heards that if you plan to stay N/A then go with the 4.10s, but if you are going to go FI then get like 3.90's or 3.73's.....but either way good luck with your choice. i heard you will really feel the diff. i'll let you know how mine turns out.