alright i'm confused. 95 z28 a4. has the RPO code for 3.23's, GU5 if i'm not mistaking. shifter goes P R N [D] D 2. i jacked my rear up, marked my driveshaft, spun the wheel one rotation and came up with 2.73's. i feel gypped. so would this make my rear a 2 series? if so that blows
