does any one know how to replace the switch i just bought the switch and can't get the old out and the new in thank you

Here is how:

REMOVAL AND INSTALLATION
BRAKE LAMP SWITCH
REMOVAL
(1) Remove steering column cover and lower trim
panel for switch access (if necessary).
(2) Press brake pedal downward to fully applied
position.
(3) Rotate switch approximately 30° in counterclockwise
direction to unlock switch retainer. Then
pull switch rearward and out of bracket.
(4) Disconnect switch harness and remove switch
from vehicle (Fig. 17).
INSTALLATION
(1) Pull switch plunger all the way out to fully
extended position.
(2) Connect harness wires to switch.
(3) Press and hold brake pedal in applied position.
(4) Install switch as follows: Align tab on switch
with notch in switch bracket. Then insert switch in
bracket and turn it clockwise about 30° to lock it in
place.
(5) Release brake pedal. Then pull pedal lightly
rearward. Pedal will set plunger to correct position
as pedal pushes plunger into switch body. Switch will
make ratcheting sound as it self adjusts.
CAUTION: Booster damage may occur if the pedal
pull exceeds 20 lbs..
BRAKE