Anyone know what size tires for 87 TA

I have an 87 Trans Am and i dont know what size tires it takes. Anyone want to help me out. I would like to buy some newer crome rims and i dont know what size, Thanks.

245-50-16 will fit nicely, thats the stock size if you have the performance package.

Ok thanks much, i bought some corvetter rims and tires...they dont fit, so i will just prolly sell them and buy some new ones.
These are what im looking at~~~>http://www.carmar.nl/images/Alba_monaco.jpg

you can toss on the vette rims, im pretty sure, you just need spacers? cuz the vette rims bolt onto the 4th gen's.. and you need spacers for 4th gen rims..