I've had pretty good success doing that with long enough bolt, heavy washer and nut to tighten the nursery.
There's only been a couple times that I couldn't get the bolt out of the nursery.
After the bolts out, I run a tap through. Then I use a longer bolt with the heavy washer and nut...
I'm very protective of my old Craftsman easy clicker ratchets. They'll probably outlast me, since they barely get used anymore.
I never broke one. I only ever used them when I needed the fine teeth.
I did have a bit of a come apart over broken Craftsman tap wrench, or maybe die handle. Early...
I usually buy a truck tool in situations like that.
I've about given up on that also.
Now I have to find a go between.
I'm more often buying, what little I buy anymore off eBay or Marketplace.
I'd plug the block heater in for a couple hours.
That's always seemed to help me out.
I had a 4 x4 adapter that would not budge.
After a few hours with the block heater plugged in. It came out with ease.
Doesn't make sense.
If the starter cranks when the starter solenoid is jumped with a screwdriver. Then it should crank with the purple wire powered.
Can you load test the purple wire?
It may read voltage but not carry enough amps to work.
If it has one tiny strand of wire left, it will read...
The way that wire was routed through the big loom, I left it & ran a new 10 ga purple high temp wire from start to finish.
It was easier and faster than trying to run it like the oem.
I used the tiny corrugated tubing over the wire and followed the original route.