Advise where to install new 2 new tires

[switchman]

Hi all ! Where do you recommend placing 2 new tires ? My front DWS are about shot with only 36k miles on them, rears were replaced last year due to nail damage and only have 15k miles and are fine.

should i put new tires in back and move back to front ? I'm still getting same dws 18".

I can't get rid of vibration at 70+ miles and still having wheel shake when braking from high speed even after replacing thrust arm bushings and ball joint. I'm also doing front brakes as i i'm pretty sure its contributing to the high speed braking issue. i'm surprised that i've put in 47k miles from last front brake job and have not gotten the brake pad warning yet.