I need to replace the ingition switch on my 1992 chev cavalier wagon. I got the steering wheel off and all the conncetions. There are 2 pressed in rivets or some kind of unremovable fasteners that prevent me from removing it all the way. How do I get Those off?

There is a special tool that screws onto the steering wheel threads and compresses the lock plate to release the snap ring so the lock plate will come off. It's a strong spring, so you'll have to rent the tool if you can't borrow one.

Yes , the steering needs to be pull .
Disable the SIR system. Refer to SIR Disabling and Enabling in SIR. Remove the steering wheel. Refer to Steering Wheel Replacement . Remove the upper and lower trim covers. Refer to Steering Column Trim Covers Replacement .
Important: The abrasion sleeve located on the steering column wire harness assembly must be reinstalled. Make note of what connector is coming out of the abrasion sleeve for installation purposes.
Remove the wire harness assembly (1) from the wire harness strap (2). Disconnect the turn signal and multifunction switch assembly connector from the SIR system coil connector.
There could be a video on youtube show how to do it .
Theret

wiper and washer switch in steering column you more likely need to remove steering wheel to get to switch two mountings screws on the right side.disable airbags before replacing switch. first turn off radio ignition switch off then disconnect negative battery cable. wait 20 minutes before removing steering wheel and remove steering column.

It will vary on the size of the engine, It depends on which engine you have.
V6 1-6-5-4-3-2
V4 1-3-4-2. Hope this helps!

Best Wishes and Good Luck!

the switch is underneath the steering wheel. the steering wheel needs to be pulled to replace the switch. the airbag is in the steering wheel, and a trained tech with a puller is needed to pull that wheel off without screwing up the airbag.

you have not told us whether your hazrd lights are working.......if they are, then you will have to replace your turn signal switch, which will require removal of the steering wheel, and cover surround.......if your hazrd lights are not working, you will have to replace your blinker relay, because the hazard lights use this relay also, it is a good indicator of a relay failure.....

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tucked Under steering wheel or on drivers side kick panel

The following procedure is "generic" for replacing the lock cylinder. There are a couple of specialized tools you will need and saftey precautions concerning the air bag system.
Take a look and let me know if you wish to tackle the job.
Regards,
To remove the ignition lock:
CAUTION You must remove the steering wheel when replacing the ignition lock. On vehicles with a Supplemental Inflatable Restraint (SIR) system, you must temporarily disable the SIR system and remove the inflator module when removing the steering wheel. Leaving the SIR system on could result in deployment of the air bag and possible personal injury.

• Disconnect the negative battery cable, and remove the steering wheel.
• Remove the bumper and the carrier snapring retainer from the steering shaft.
• Use a lock plate compressor screw tool to install the lock plate compressor screw in the upper steering shaft. To keep the shaft from telescoping, tighten it to 40 inch lbs.
• Using the lock plate compressor tool, install on the upper steering shaft, tighten it to depress the shaft lock. Remove the shaft lock retainer, the compressor tool and the steering shaft lock.
• Remove the turn signal canceling cam assembly. Put the turn signal switch in the "N" position and remove the upper bearing spring.
• Position the turn signal switch so the mounting screws can be removed through the holes in the switch and remove the turn signal lever.
• Remove the turn signal switch-to-steering column screws and lift the turn signal switch. Remove the wire protector and disconnect the turn signal switch connector.
• Use a terminal remover tool to disconnect the buzzer switch wires from the turn signal switch connector. Remove the buzzer switch assembly with needle-nose pliers.
• Place the lock cylinder in the ACC position, then remove the lock retaining screw and the lock cylinder set.
• To install the new cylinder lock, reverse the removal procedures.
• Tighten the lock retaining screw to 22 inch lbs., the turn signal switch screws to 59 inch lbs. and turn the turn signal lever screw to 53 inch lbs.
• As part of the final replacement procedures, check the operation of the switches and the steering column.

Most older gm cars you can use dexron 2 transmission fluid or find in your local parts store a good brand of universal fluid.