I am 99 percent sure I am just over worrying about stupid things.

But, what are the chances of a car rolling off a sloped driveway with the parking break on and the car put in drive. I ask because I backed into my driveway, applied the foot break, applied the e-break, put the car in park, then released the foot break. After I released the foot break the car shifted slightly, less then a quarter foot probably, but it doesent always do that.

My question is, am i over worrying, or, should I be concerned.

 

Adjust your parking brake shoes?

 

I second this notion.

 

If you put the car in park, the parking pawl (a pin) locks the trans so it doesn't spin but the car has some slop which is why you feel it move. Your car won't be moving if its in park but if you don't like that little movement adjust the parking brake shoes like others suggested. Its really easy to do

 

That is actually not quite healthy for the transmission in the long run. The recommended parking method on incline or decline is to set the parking brakes first before entering P. And reverse the process when driving away.

 

Thats correct. Its definitely best practice to set the parking brake, put it in park, then let your foot off the brake for minimum stress on the transmission