So I was on my way to work this morning and when I found out that the off ramp for my exit was closed after sitting in traffic for about 15 minutes. I proceded to merge back off the exit ramp onto the road. There was plenty of room, but being a chance to got WOT, I did. At the top of first I think the car thwacked the rev Limitier, but the rear end got swirly at the same time

. So the questions stands, if the rear end broke loose, could the car thwack the rev limiter, or is my tranmission slipping. I did a series of wot pulls on the highway, none of them from a dig obviously, and detected no slipping or anything but firm crisp shifts. 4l60e 95 lt1 btw.