gears (yes i read the other posts)

This is not a question of which gears to get, or whatever because i read about a 100 posts about that. The question is, what exactly do I need to get both tires to spin? I know i need a new differential, but where and what package do I get 3.73's with that differential?
Note: I'm ordering from 1.8's Roller rockers from SLP, so i prefer just getting them with SLP........ Car group is having a get together at a dragstrip and I plan on scaring my friend's 98 GT stang.

Yes, its the differential...a limited slip differential to be exact.

SLP sells a Z28 Posi (another name for an LSD) for 99.95. A new Eaton posi which is the hizzel shizzel runs about 350 to 400 bucks.

But 3.73's and posi should help you to hoot, scoot, and boogy!!!