Iannixony

I have a stock rear on my 98 trans am and I was wondering what the stock back spacing

badformulaLS1

iTrader: (1)

Been a while since I've had a 4th gen but it's 7.5 if I remember correctly.

99SSJarhead

iTrader: (2)

WIDTH ..... OFFSET ......... WIDTH OF TIRE

Front and Rear

7.0" ..... +35 to +40 mm .... 215, 225, 235
7.5" ..... +35 to +45 mm .... 215, 225, 235
8.0" ..... +38 to +55 mm .... 225, 235, 245
8.5" ..... +38 to +45 mm .... 235, 245, 255
9.0" ..... +38 to +56 mm .... 255, 265, 275
9.5" ..... +38 to +56 mm .... 255, 265, 275, 285
10.0" ... +38 to +48 mm .... 265, 275, 285

REAR Only

10.0" ... +38 to +54 mm .... 275, 285, 295
10.5" ... +38 to +50 mm .... 285, 295, 305, 315
11.0" ... +45 to +56 mm .... 305, 315, 335