1999 Chevy Tahoe Brake light sending switch

Electrical problem
1999 Chevy Tahoe V8 Four Wheel Drive Automatic 190000 miles

I have no brake lights. All fuses are fine. Turn signals and hazards work fine. Tail lights work fine. I just have no brake lights.

I purchased a part manufactured by "Standard" Item Number #SLS213 or V07198. It's called a Switch/Commutateur Interruptor.

Basically, A plastic switch that mounts onto the brake pedal under the steering column. Therein lies my problem.

How do I get to it? There are two bolts under the steering column which hold a plate however the steering column is welded to the plate that holds the bolts.

Can you explain the process of how I can replace the switch? The more details for me the better as I'm not the brightest bulb.

Thanks,

Joe