Did it today.
Did not take tire off
Did not take spring out.
Did not take control arm off.
Main part of the bolt realignment and install was done from inside the car.
New bolt, nut, and reinforcement plates in.

Been trying for years to get the nut off this bolt.
Well got it today. Easily. Unexpectedly broke the bolt in two pieces.
Car was parked in drive. 90 in the shade.
Deep trouble. Car was now disabled. Now what.

Had to attempt to install a new bolt without taking anything apart.
Got out the floor jack to support the arm.
Then took the bolt pieces out. Came out easily.
Nothing odd happened in the frame box area when lca bolt pieces were removed.
Installed new bolt installed. Started it by tapping with socket on bolt head.
Pried into position with long crow bar, long screwdriver, and luck.
Was easier than working with car overhead.

Took opportunity to install reif. plates.
Made a sandwich with thick metal plates for the bread. Used the RLCA bolt as a 'toothpick'
One slice is under the bolt flange head as a backing plate.
Used a 1/8" thick trailer axle spring mounting u-bolt plate. Had exact hole size.
The other slice is the pass side SMR reinforcement bracket.
The lca bolt was long enough to pull this off with treads to spare. Bolt kit from Jegs.

Turned out fine for now.
Replacing control arm hopefully next week.

Car is back on the road.

Attachment 121453
Attachment 121454