2008 QX56 mainteance question

Truck is coming up on 95k miles, what do I need to do??

In the last 25k miles these services have been performed:

Tranny fluid and filter change
Diff fluid change
Brake system flush
New bilsteins( night mare more on that later)
Plugs
Battery
Cabin filter
Tires

What should I do next? We want this thing to last as long as possible so over mainteance is ok..

Tranny fluid change?
Diff?
Coolant?
Radiator?
Water pump?

I will do brakes and rotors for sure

Is this a 95k service that should go to the stealer to check joints and grease stuff??

Is it worth the money for an external tranny cooler?

Now on the bilsteins....I replaced these POS' and they rattle and clunk they arent seated properly or like they are loose..I have checked snd checked snd see nothing. Every time I go over a bump it clunks so loud...these are junk..what should I do? Replace them again?


Thanks for any help!!