I have a problem with my transmission in my 99 SLE, that is concerning me. If you hit the throttle hard from a dead stop or if you have the car loaded full of people and are taking off on a steep uphill grade the transmission will hammer a few times through the drive line, also when cruising down the highway, when the converter is locking and unlocking, its not very smooth, you can feel a bit of a shutter. I have serviced the tranny recently and the previous owner had a tranny flush about a year ago. Hopefully these issues can be resolved without a major overhaul. Any suggestions?