GM Service Manual Online
For 1990-2009 cars only

Tire

P

R

Z

D

P 235/65R16

818 ± 10 mm (32.2 in)

832 ± 10 mm (32.8 in)

18 ± 10 mm (0.71 in)

42 ± 10 mm (1.7 in)

P 235/60R17

823 ± 10 mm (32.4 in)

836 ± 10 mm (32.9 in)

18 ± 10 mm (0.71 in)

42 ± 10 mm (1.7 in)

    • The front wheel opening height P (P) is measured from the bottom lip of the wheel opening to the ground, measured at the center line of the front wheel.
    • The rear wheel opening height R (R) is measured from the bottom lip of the wheel opening to the ground, measured at the center line of the rear wheel.
    • The rear suspension D Height is the difference (D=a-b) measured as a horizontal line thru the center of the cradle attachment bolt (a) and the center of the knuckle attachment bolt (b).

***All measurements are taken with a full tank of gas.