can I put these slick on my fox?

i have a Chance to pick of some used slicks for free. not the best cond. but still some good runs on them but they are free.

the size is 15x12x28.5

i want to put them on my stock 88 turbine rims then on my fox.
does anybody know if they will fit.

stang is stock susp. and stock ride hight
 
not in a million years.

Minimum rim width for a 12" slick is 10"

That said, Even if you "made it fit"" Lugging around the additional rotational mass of a 12" of slick when you might only need 9" is actually gonna slow the car down. That, coupled to the fact that at 28.5" the tire's gonna grow at the big end of the track. Grow enough to probably rub against the front leading edge of the quarter panel, and pinched onto a 7/8" rim it'll grow even more.