My rear has always been howling since I bought the car, mainly when I have very slight pressure on the throttle cruising around town. Buy now since I have put the stock exhaust back on I'm hearing it quite a bit. What are signs of the rearend goin on its way out??? I got the stock 3.08's in there and shouldn't my car spin 1st easily if I just romp on it? I'm pretty sure the trak-lok still works cause when I was stuck in the snow in my driveway my dad said both wheels were spinnin, if that means anything. I was thinking about checkin the fluid level on the rear and refilling if necessary. I had my mechanic top it off over a year ago so who knows. I wish I had a job and money so I could get the 3.73's and a rebuild.