I have a 87 blazer s10... the turnswitch /wiper/highbeam switch is broken and is shorting out my brakelights ..i cant seem to get to it.. took the steering weel off but ..?

Unfortunately there are some special tools required you will need to get to the turn-signal switch. Below is the procedure for replacing the turn-signal switch. Generally you can rent the puller from a local auto parts jobber or you can purchase one.
Good luck, let me know how it goes.
Regards,

Many vehicles use a turn signal switch that is separate from the multifunction switch. The steering wheel will have to be removed to gain access to the turn signal switch on these vehicles. The following procedure is a common method of turn signal switch replacement:

• Place the fender covers on the fenders.
• Disconnect the negative battery cable.
• Remove the steering column trim.
• Remove the horn pad from the steering wheel.

• Remove the steering wheel and horn collar.
• Use a suitable puller to remove the steering wheel.
• With a suitable compressor, compress the preload spring to the lock plate. Compress the spring only enough to remove the snap ring.

• Use a pick and a small flat blade screwdriver to remove the snap ring.
• Remove the lock plate, horn contact carrier, and spring.
• Remove the bolts at the upper steering column support and the upper mounting bracket from the column.
• Disconnect the turn signal wiring connector.
• Wrap tape around the wire and connector.
• Remove the hazard warning knob from the column.
• Remove the switch retaining screwi have a 87 blazer s10... the turnswitch - f_aee_cc14.30.jpgswitch.

• Replace the switch and reverse these procedures for reinstallation.

There are special tools needed to go further. to depress the steering wheel lock plate and remove the snap ring. after you do that , there are screws and wires. the wire plug is lower down on the column',do yourself a favor and connect a sring or thin wire to the connector before you pull the wires out of the column, then attach the string to the new coonnector and pull it down through.

You took off the steering wheel now you are at the lock plate. this is a spring loaded plate you need a lock plate compresser to remove the thin lock ring.