GM Service Manual Online
For 1990-2009 cars only

Tire  Size

Engine

Package

Style

D (Curb)

J (Curb)

K (Curb)

Z (Curb)

P225/60R16

3.8L

GT

4-Door

255 mm (10.0 in)

213 mm (8.4 in)

213 mm (8.4 in)

35 mm (1.4 in)

P225/60R16

3.8L SC

GTP

4-Door

256 mm (10.1 in)

213 mm (8.4 in)

213 mm (8.4 in)

36 mm (1.4 in)

F: P255/45R18

R: P225/50R18

5.3L

GXP

4-Door

254.9 mm (10.0 in)

228.8 mm (9.0 in)

221.6 mm (8.7 in)

28.5 mm (1.1 in)

* The D Height (represented as 1 on the figure) is measured from a point 30 mm outboard of the rear brake hose bracket bolt centerline to the bolt centerline of the trailing arm to the steering knuckle.

** The Z height is measured in line with the wheel center:

  • 1 represents the center of the rear bushing bolt
  • 2 represents the lowest inboard point on the ball

Measuring Z Height


Object Number: 186754  Size: SH

Measuring D Height


Object Number: 236112  Size: SH

Measuring J or K Height


Object Number: 186760  Size: MH