Still unsolved no tool i have can touch it,does it stay by friction?

This could be a challenge for a novice so if you don't feel comfortable with your ability, seek help from a trusted shop.
You will need some special tools to get the job done. Steering wheel puller, lock ring tool, phillips screwdriver, torx bit #30, flathead screwdriver, sockets/socket wrench, snap ring pliers.

First thing is to take the neg. battery cable loose. The airbag is located on the steering wheel and attached with 4 #30 torx headed screws from the back side. Remove and unclip the airbag and horn connections from the module. Remove the steering wheel nut with the 13/16 socket wrench or equal. Affix the steering wheel puller to the steering wheel--remove same. Affix lock ring removal tool and depress lock ring. Remove snap ring from base of lock ring on steering shaft. Remove 2 phillips head screws from lock ring located at approx. 11:00 o'clock and 7:00 o'clock of the lock ring. Remove lock ring.
Now remove the turn signal switch. It is attached with 3 phillips screws. There is also a small phillips screw holding the turn signal indicator lever in place. remove the screw and bracket on the indicator then remove the 3 screws holding the switch. The turn signal switch should be able to be pulled out enough to access the screw holding the ignition switch in place. Don't get too aggressive with it but gently pull it out enough to get in there.
On the right side if the ignition pot is a couple of copper contacts that are in a plastic holder. These are for the buzzer that tells you your key is in the ignition. It pulls straight out with little effort. Locate the screw and Remove--it will be about 2-3 " long and it is what holds the ignition switch in place. You should be able to pull the switch assy. out of the column at this point. Replace with new switch and reinstall the holding screw. put the contacts back in if you want it to buzz when you leave the key in or have it on ACC. It won't hurt anything if you leave it out to avoid the buzzer.
Reinstall everything as removed making sure to put the steering wheel back on straight and tighten nut to proper specs.
You can rent the special tools needed most of the time from auto parts stores, see them for the details or conditions-(Auto Zone, Advance, O'reilley) just to name a few that have loan-a-tool.

you need haynes repair manual for 1993 suburban it has photos and information you need to help you replace ignition switch.i am mechanic i use haynes,chiltons and gm manuals.if you are a home mechanic do it your self you need haynes repair manual it has step by step instructions to remove the steering wheel and remove lower steering column reason i say need haynes repair because your steering wheel has a air bag in it you need to see how to remove air bag in steering wheel you need to read through the entire ignition switch removal procedure if you are going to replace ignition switch with keylock cylinder you will also need steering wheel puller. you need a tool compress lock plate to remove lock plate retaining ring from steering shaft in order to get to the ignition switch in the steering column below turn signal switch.

It is held in with a bolt. You need to remove the steering wheel, lock plate, and turn signal switch to gain access. You will need special puller for the steering wheel and a special tool for removing the lock plate.

you will need to remove the steering wheel, and remove the compression plate and then remove the hazard button and the blinker lever and then remove the turn signal switch plate,, then you will see a small screw going down into the column ( right where the ignition switch body is ),, remove this screw and the ingition lock will pull straight out. put new lock in and reverse tear down instructions and you are good to go.
( NOTE: the steering wheel will need a steering wheel puller to remove -- and the compression plate will need a compression tool to remove and install the small lock ring from the steering wheel shaft --- these tools can be bought at your local auto parts store or they can be rented at your local tool rental store ).

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THIS REQUIRES A FEW SPECIAL TOOLS YOU WILL HAVE TO PULL THE STEERING WHEEL, & THE LOCK PLATE, THAT LOCKS THE STEERING WHEEL & THE TURN SIGNAL SWITCH. THERE IS A SCREW UNDER THE TURN SIGNAL SWITCH THAT HOLDS THE IGNITION LOCK CYLINDER IN PLACE. YOU MAY HAVE TO TAKE IT TO A SHOP. TOOLS ARE STEERING WHEEL PULLER & A LOCK PLATE SPRING DEPRESSOR, & PHILLIP SCREWDRIVER & A TORX SCREWDRIVER.

you will have to replace the lock cylinder in the steering column. This is a diy job, if you can borrow or rent 2 tools. One is a steering wheel puller, and the other is a lock plate depressor. Some part stores will loan/rent these tools. Once you have the tools proceed as follows: 1 remove steering wheel with steering wheel puller
2 install lock plate depressor and depress the lock plate to remove the retaining ring. 3 Remove the turn signal lever and hazard light button, then the three screws that hold the turn signal switch, pull up on the switch and push it out of the way. You may have to get under the dash and unplug the harness to the switch to get enough slack to clear the steering column. 4 remove the lock cylinder retaining bolt then slide the lock out. slide the new lock in replace the retaining bolt and reassemble the column.

The steering wheel doesn't need to be removed in this vehicle the ignition cylinder is removed in this video.

The ignition switch removal and installation procedure is given in , under steering, because the steering wheel must be removed for access to the ignition switch.

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.

The steering wheel is splined to the steering column and held in place by a nut. Courtesy of General Motors Corporation - Service Operations.

Hope this helps (remember rated and comment this).

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.

The steering wheel is splined to the steering column and held in place by a nut. Courtesy of General Motors Corporation - Service Operations. gl
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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.