I need to put the car on four floor jacks to do the brakes, but Im not sure where the jack locations are. Can anyone help me out?

 

You can jack it from the front K-member and the rear diff.

Greg

 

Dont forget to use jack stands and chock the wheels.

 

Do LS1 cars have a jack pad behind the front tires like LT1 cars do?

On LT1 cars there is a hard plastic pad, right next to the lower fender bolt flange. It actually says "do not jack" on the flange, but the pads are specifically FOR jacking.

 

Yeah, all 4th gens have the pads.