| Subject: | Revised Wheel Alignment Specifications | 
| Models: | 2004-2005 Chevrolet Colorado | 
| 2004-2005 GMC Canyon | 
This bulletin is being issued to revise the wheel alignment specifications in the Wheel Alignment sub-section of the Service Manual. Please replace the current information in the Service Manual with the following information.
The following information has been updated within SI. If you are using a paper version of this Service Manual, please make a reference to this bulletin on the affected page.
Suspension Options  | Caster  | Cross Caster (L - R)  | Camber  | Cross Camber (L-R)  | Total Toe  | Steering Wheel Angle  | |
|---|---|---|---|---|---|---|---|
Left  | Right  | ||||||
4X2 With RPO Z85  | 4.30° ± 1.00°  | 4.50° ± 1.00°  | -0.20° ±0.50°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ± 0.20°  | -1.00° ± 3.50°  | 
4X2 With RPO ZQ8  | 4.70°± 1.00°  | 4.70° ± 1.00°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ± 0.20°  | -1.00° ± 3.50°  | 
4X2 With RPO Z71  | 3.60° ± 1.00°  | 4.00° ± 1.00°  | -0.40° ±0.50°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ± 0.20°  | -1.00° ± 3.50°  | 
4 X 4 With RPO Z85  | 3.80° ± 1.00°  | 4.00° ± 1.00°  | -0.20° ±0.50°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ± 0.20°  | -1.00° ± 3.50°  | 
4 X 4 With RPO Z71  | 3.60° ± 1.00°  | 4.00° ± 1.00°  | -0.40° ±0.50°  | 0.00° ±0.50°  | 0.00° ±0.50°  | 0.00° ± 0.20°  | -1.00° ± 3.50°  |