GM Service Manual Online
For 1990-2009 cars only

RPO

Service Preferred

Tolerance

Metric

English

Z Trim Height

  • ALL

37 mm (1.45 in)

± 10 mm

0.4 in

D Trim Height

  • ALL

62.2 mm (2.44 in)

±10 mm

0.4 in

RPO

Service Preferred

Tolerance

Metric

English

P Trim Height

  • ALL

731.2 mm (28.78 in)

± 10 mm

0.4 in

R Trim Height

  • ALL

730.4 mm (28.75 in)

± 10 mm

0.4 in