Canceling emergency flashers

[mr914]

Hi I'm Keith, I'm new here... I normally play/restore old Porsches as a hobby...

My GF has a 70 C10, 6cyl, 2wd, 4speed, trailing arms that she has owned for darn near 30 years. "Old Gold" the farm truck

So far, with the help of this board and a couple of YouTube videos...

I've fixed and upgraded the following

Replaced, so far...
Window regulators with new seals
Replaced headlight switch and new bulbs in the dash
Reworked all external lights
Fixed ground issues
Rebuilt heater control levers and switches
Pulled heater box and found a coffee can full of leaves and crud
Replaced exhaust from tail pipe to manifold
Replaced manual steering box. BTW advance auto parts was cheaper by almost $100
Shocks on all 4 corners

I have a few issues...

My first problem is, with canceling emergency flashers.
I've searched this board and the web, and I can't find the solution...

Started off as, while having a neighbor help me check lights, he pushed the emergency flasher switch in and we could not cancel it, pulled hard enough out to break the red post off... Went to the local FLAPS and bought a new turn signal switch, pain in butt to replace, and still can't cancel the emergency flashers. Pushes in easily, but still won't cancel. With the steering wheel off, there is a tab that I can push that will easily cancel the flashers...

I must be missing something. I need help with this one. The upper column bearing has about 1/8" play and I have the rubber grommet that goes around the horn wiper clocked to match the offset for the e-flasher detent.

Your advise is appreciated

Other issues to correct....

Dome light, the bulb is good. How does it get turned on and how is the wiring routed?

When replacing the rear shocks, one side, the fork at the rear of the trailing arm has widened, allowing the rear end to move a couple of inches. Is the solution to put a thru bolt in and draw the two sides together or to weld a couple of stops in to keep the diff/shock plate from moving?

Other projects planned.
Headlight relays, my thanks to whomever shared the info about the late 80's early 90's relay pack.
Replace rear main seal on engine. Easier to pull engine ot trans for this?
Replace bushings in trans linkage

My thanks in advance