1999 monte carlo, No brake lights, trying to pull the steering wheel, Does any body the bolt size that you use with wheel puller? is it S.A.E. or Metric ?
then does any body have an idea of what to look for to fix ?
Thanx to anybody answering

Pretty sure they're 5/16" USS and the multi-function switch is most likely to blame. Available aftermarket. Once wheel is removed, SIR clock-spring is retained with snap ring, as is wheel lock 'collar'. The wheel lock collar will require use of a special tool to depress the spring to access the retainer ring for removal. Once you have that and the plastic horn contact/cancel collar out of the way, you're looking at the switch.