I've got two cars for both of my kids, and I take care of them. I was double-checking everything when I changed all the fluids.

My oldest one has a camry 2014 se with 140000 miles 

I recently changed 

Brake fluid 

Coolant 

Engine oil 

Transmission fluid is due.( i bought it from my cousin he said he changed at recommend warranty )

I took it for an inspection mechanic said I have to change front differential fluid ..does. my 2014 cmary se has front diff and how often should I change them mechanic quoted me $319.00 for both 

2014 sonata gls has 80k miles

I recently changed engine oil 

I'm gonna do the brake fluid, coolant, and brake pads all at once. 

I changed the transmission fluid at 60k, and I'm gonna do it again at 80k. My daughter drives between Oklahoma and Texas, she's a OU student, and she comes home every weekend, so she's racking up a thousand miles a month.

I do have a question does my sonata has front diff and does it have to be changed ?

So, I  put those Duralast Plus pads on her car, and remember changing them at 40k miles, and the mechanic says they're at 60%. I am gonna swap them out next year. Any recomendation for carbon ceramic ones? I know they're pricey, but they'll last longer than the car and her university years, 

Thank you.

Sorry for the long message