Frame Control Hole Description

2004 Oldsmobile Bravada RWDSECTION Frame Control Hole Description
WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Identifying Frame Control Hole
G03382392Courtesy of GENERAL MOTORS CORP.

Control holes are round or oval holes located in the underbody structure sections, the upper body, and the body sides. Some control holes can be identified from other holes by a turned up lip on the inside of the hole. This reinforced lip reduces the possibility of hole distortion and increases accuracy during assembly. Utilize control points whenever possible when measuring underbody dimensions, in order to obtain the most accurate readings.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

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  • Brakes feel soft, pull hard to one side, or make grinding noises.
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