What tool is used to check for hidden frame damage?

What tool is used to check for hidden frame damage?

• A. Frame measuring system
• B. Frame jig
• C. Torque wrench
• D. Dial indicator

Answer: (A)

When checking for hidden frame damage, you need a precise, reference-based assessment of the chassis geometry. A frame measuring system uses fixed reference points on the vehicle and calibrated gauges or digital readouts to compare actual dimensions, angles, and straightness to factory specifications. This lets you detect distortions that aren’t visible, such as subtle twists or crossmember misalignment, even after the exterior looks fine. A frame jig is for positioning and holding the frame during repair, not for diagnosing whether the frame is out of spec. A dial indicator can measure small local movements or runout at specific spots but doesn’t provide the full frame geometry map needed to confirm hidden damage. A torque wrench adjusts fasteners and isn’t used to assess frame integrity. So, the frame measuring system is the best tool for this purpose because it directly checks the frame against known specs across multiple points.

When checking for hidden frame damage, you need a precise, reference-based assessment of the chassis geometry. A frame measuring system uses fixed reference points on the vehicle and calibrated gauges or digital readouts to compare actual dimensions, angles, and straightness to factory specifications. This lets you detect distortions that aren’t visible, such as subtle twists or crossmember misalignment, even after the exterior looks fine. A frame jig is for positioning and holding the frame during repair, not for diagnosing whether the frame is out of spec. A dial indicator can measure small local movements or runout at specific spots but doesn’t provide the full frame geometry map needed to confirm hidden damage. A torque wrench adjusts fasteners and isn’t used to assess frame integrity. So, the frame measuring system is the best tool for this purpose because it directly checks the frame against known specs across multiple points.