electrical questions /issues

[BigFrank]

3 times now  my suburban has  all at once the blinkers brake lights  stop  working     then the next day  speedometer don't work  and trans wont  shift   weird thing is  the running lights and 3rd light on the top still work    but theres no power too the fuze for turn/brake lights    last time  it happened  I took the firewall conector apart  and had bad wires going too the part that goes too the rear lights and that made everything else work  but the wiring too the trans  is from the other side of the connector    its pretty confusing too me  and very aggrevating  when it usually does it the day before  I want too go somewhere     has anyone else had issues like this  and if so what was the problem???

[BigFrank]

4 way flashers are working  theres power too the fuzes   both of the flasher relays are good  and theres a good ground at the rear on the frame   going too change out the steering column today  for one that dosent have a goofy blinker switch in it   also took out the front drive shaft so I could get at the electrical harness for the trans  had it all pulled up into the engine bay and took all the  plastic cover off from it cant find any bad wires    must be time too take it too the scrap yard