Colorado 2WD L5-3.5L VIN 6 (2005)
5.
Drill 7.5 mm (19/64) (0.30 in) holes into the weld flange of the side outer panel.
6.
Apply anti-corrosion material to the drilled holes as necessary per the GM 4901M-D-2006 (English) or 4901M-D-F2006 (French) Approved
Refinish Materials booklet. The information for the 2006 GM Approved Refinish Materials booklet will now be Online at the
GMGOODWRENCH WEB SITE ONLY*. Printed books have been discontinued. Steps to the site are as follows:
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Go to www.gmgoodwrench.com.
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Select and Click on GM Collision Parts from the drop down box in the center of the page.
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Click on GM Technical Repair Information from the middle of the page.
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Click on Paint Shop from the top bar of the page.
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*In Canada, the 2006 GM Approved Refinish Materials booklet is also available on the GM infoNET under the Service and Body tab.
7.
Place the front reinforcements back onto the box, lining up the drilled holes.
8.
Install the large shoulder (M8) bolts (2 per side) into the reinforcement and front panel and the small (M6) bolts (3 per side) into the reinforcement
and side outer panel with the nuts.
Tighten
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Tighten the M8 bolts to 25 N.m (18 lb ft).
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Tighten the M6 bolts to 9 N.m (79 lb in).
9.
Remove all metal shavings from the pickup box after installation.
10.
Install the bedliner and rail protectors if equipped with the aid of an assistant. The bedliner or bed rail protectors may need to be trimmed in order
to obtain the necessary clearance for the reinforcements.
Parts Information
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