There are lots of different sizes so backspacing may be a problem but I believe the 88-92 grand prixs have the same bolt pattern as the 99 and up grand ams 5x115. 85-98 grand ams are 5x100 but so are 99 and up grand prixs
yes
yes
Yes they can. I have 22's on my 05 Pontic grand prix
yes they will.
check lugnutpatterns.com
check out lugnutpatterns.com
Yes, they will fit.
if its lifted but if not no
yes i have 20ths on mine
yes all you need is to raise the suspension
they should YES THEY WILL ALL GM CARS THAT YEAR ARE 5X115 (EXAMPLE GRAND PRIX,GRAND AM,ALERO,MALIBU ECT ) ARE ALL THE SAME
you dont.....