Scotty, if my car does the same in third and fourth gear, could the fourth gear hub be causing the issue in both gears?
I had the car up to around 130, so maybe 125. I was showing a friend that my gtp was faster than his V6 Camaro, but another time I had 3rd selected (this is when I was testing the trans for slippage) and I hit the 110 limiter.
But basically, at moderate throttle and when the trans is fully locked up, it almost feels like the car decides to downshift, but then changes its mind within milliseconds, causing the jolt.
