You definitely want to use some chocks. You have to be careful that they don't slide. Metal may not be the best thing. I've seen airplanes use rubber triangular ones that won't slide on pavement.

Do you plan on jacking one corner, one end or one side?

Do you plan on working under the car?

 

Plan is to jack it up and put stands under the front. Then remove both wheels to do some cleaning and change the brake pads.
The rubber chocks sound like a good idea.

 

just take the necessary precautions and you'll good to go. Just make sure to really pull up on that E-Brake and put the car in 2nd gear. Chalk the wheels and once it's on the stands you should be fine. I change my oil on a 20% incline with no problems. It was a little uncomfortable at the beginning but its nothing but a thang now.

 

Preciate the info fellas. Gonna get some rubber chalks today and jack her up.

 

Don't take unnecessary risks... do not jack your car up on an incline.... EVER!

"maybe you'll be fine" but maybe you'll be dead. Neither the jack stands nor the jack itself are designed to lift the car on an inclined surface. You should use chocks even on a flat surface.