Factory Service Manual - Chassis - Section 21,
pages 21-80 and 21-81 show the different linkages for either column or console.
They are different.
Which one are you looking for ?
If you put any weight in the back and also don't like the factory droopy rear springs. you will need to get the rear up.
Otherwise hitting dips with weight in the car, like a friend or 2 will cause the unmodified fender lips to contact the tires.
Again, do it properly with springs not air...
There was never a factory 8" Rallye wheel made.
It will need to be custom and will not likely fit without rolling the fender lips.
Still a 275mm section width tire may still rub cornering on the leaf springs or inner fenders if you are looking to use them at stock height.
No air shocks ! New...
First would be a good quality 1/2" impact gun. First tighten the bolt, next try to loosen it. This will often work by getting slight movement forward first.
Once you break the fastener loose, it will just come out. you may have to do the tighten/loosen cycle a few times to break it loose...