Transmission???

I was wondering if anyone else has had this problem. Sometimes when I back out of my driveway and stop and put the car in drive to take off, it will make a funny noise and sorta feel like it is slipping in the front or hopping.... I don't really know how to explain it, but if anyone has had it happen they will understand. I'm not sure if it a problem with the trans or with the traction control.... ect... please help if you have any input......

The more I am researching my Montana I am finding out that a good portion of GM products have this trouble with their trannys.

best guess would be reverse input shell {stove pipe} is damaged,,,,,
not uncommon