Changing the rear brakes on a 97 oldsmobile cutlass supreme

Most likely not. I have used two people and a pair of long needle nose pliers. Most car parts stores will loan you tools as well.

Try to push on the piston with clamps. I use this one on the picture below and work great for me.

Hello, open the hood locate your brake fluid take the top off, than you want to losen the lug nuts one the wheel enough so they turn by hand. Jack up the car high enough to get a jack stand under it and the wheel is off the ground. Once the car is supported securely remove the lug nuts and wheel. Once the wheel is removed remove the screw on the bottom of the brake caliper, remove the old pads. Rotate the caliper upward, using a C-clamp and a old brake pad push the piston back in the caliper. Position the old brake pad to cover the piston and the C-clamp in the center of the old brake pad and slowly turn till the piston is fully retracted in the caliper. Install the new pads, put the caliper back in position, put the caliper screw back in double check work. Once every thing looks ok put the wheel back on, only hand tighten the lug nuts, make sure the wheel is tighten evenly. Remove jack stand, lower the car tighten the lug nuts using a crossing pattern once that is done pump the brakes, till they get firm, after they get firm start the car pump the brakes a few more times. The fun part take it for a test ride but allow your self more than normal distance to stop.

The pistons in these calipers must be rotated as they are threaded back into the caliper body to make them retract.

You will see two small notches in the face of the piston, this is for the tool to rotate it back. This tool cost about $8 at any parts house and fits on the end of your 3/8 extension, it fits several different makes of calipers (looks like a small box with pins on it).

It is probably just as easy and just as cheap to replace the caliper itself then tearing it apart to fix the seal.

my rear caliper has the upper bolt cover with a aluminum cup with a rubber center tip,how can i get to the bolt in order to relase the caliper.

You have to turn (rotate) the piston to get it to go back. A c-clamp will not work and it may damage the piston. I have a 1995 and I just replaced the pads on the rear this past summer. I did what you did and tried the c-clamp and it didn't work. I then read up on it and you have to turn the piston. I did this with some needle-nosed pliers and put them into the valleys on the piston to turn it. I can't remember which direction I turned the piston. I think it was clockwise, but I am not sure.

undo the small bolts holding the brake pad housing remove pads .undo the larger 2bolts retaining the calipers then remove ,, not when changing disks you should repack your bearings,

brake caliper?? get a large C-clamp and a little block of wood. put the wood over the piston and use the clamp to push it back in the caliper

This is the type of job where the guy who is helping you needs to be right there doing it.
Sorry,,you are going to have to ask a mechanically minded neighbor to help you on this one.