Getting fed up...

Are aftermarket parts any better for newer cars? I know parts some like motor mounts made in India (Anchor, DEA, ...) are just as bad for my newer vehicles as for my classics. You can always go to the dealer for branded parts, but the prices may amaze you, especially on a newer model. You could switch to a battery car, but last I saw Tesla charges $750 + labor to replace a driveshaft, which wears out every 10K miles in a Model S or X if you like that acceleration. I've bought a driveshaft for my minivan which looks the same for $25.

Re the master cylinder issue shown above, I installed more modern 2-bolt aluminum MC's in my old Mopars, to get the dual F-R system. You don't have to stick with OE designs. I re-engineer when it simplifies and saves cost. Can always bolt back the old parts if the car ever heads to a museum.