my A4 jerks alot. when i put it in drive it jerks REALLY HARD. it also jerks when going from first to second. the rest of the gears work fine. i got 91000 on the car

 

U-Joints or a tranny mount.

 

I gotta get mine serviced soon. I was racing another LT1 today and keeping even until my transmission wouldn't shift from 2nd to third. I had to let off a little for it to change gears and he put about a car length on me.