Smooth Drive Overside Size Tires

I'm suppose to be running 265/75/16. I have 265/50/20s with some edge wear but much. I keep around 44psi max due to warm weather (South Carolina Columbia) but when cold 42psi. My concern is does anyone else run same 20in tires on gen 3 tacos. I'm not too sure to explain and maybe I just worry to much, but I feel like it's hard to control on the road, and the alignment machine only show up to 18 rims to attempt to adjust. No physical play in the wheels. Bushings have stretch marks/cracking and my inner tie rods bushing have seepage. Any advice would be greatly appreciated regardless or criticism or legit aid. I bought the truck at 88.9k miles and I'm at roughly 117k. Personally I can adjust toe and get it in green on alignment machine. I have co -workers help me adjust caster and camber. However they had to raise front end up for jack compensation to get in green.

 

Those tires would be smaller than stock. Your air pressure is also pretty high. I keep mine at about 34 psi. 33s though.
Also your truck has quite a few miles. Might just be time to replace components due to wear.