Driveline Options for the 2006 GTO

The following list contains the standard and driveline options for the 2006 GTO. The bold text for each option is used in the Top Speed Calculator. If your car is modified, use the closest match. You'll have a chance to make changes in the Top Speed Calculator page.

Select Engine for the Max RPM:

Standard LS2 (364cu in, 6.0L, V8, 400Hp, 6500RPM at redline)

Select Transmission for the Gear Ratios:

4-Spd Auto 4L65-E (M32) (1st 3.06:1, 2nd 1.63:1, 3rd 1.00:1, 4th 0.70:1, rev 2.33:1)
6-Spd Close Ratio Manual (M12) (1st 2.97:1, 2nd 2.07:1, 3rd 1.43:1, 4th 1.00:1, 5th 0.84:1, 6th 0.57:1, rev 2.90:1)

Select Rear Axle Ratio:

  Engine   Trans  
  LS2 6.0L   Auto   Std
      Manual   Std

Select Tire Size:

Standard (P245 / 45ZR17)
Optional 18 inch (P235 / 40ZR18)