My TH is 1/2” taller on passenger side. It could have to do with gas tank weight etc. Also - when you measure - MAKE SURE YOUR WHEELS ARE POINTING STRAIGHT AHEAD - and if the ground is not dead level it will be way off - these trucks are made to flex
I get the same 2 clunks - reverse and in/out of 4H. The reverse is not common and the 4H can be minimized by moving the truck slowly when getting in and out of gear.
I ended up not going up in size that much - I’m only 0.2” more diameter - so I kept stock spare and original lugs — I also got a sidewall repair kit and a traditional tire repair kit
What’s the diameter ? 35”? One thing about this truck that toyota nailed is this thing doesn’t need a regear on almost any sized tire. It’s that low end electric motor torque hit that accommodates most sizes. And even if you don’t have a hybrid I’m not hearing any issues.