How to tell if the frame is straight? - Vintage Mustang Forums

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post #1 of 2 (permalink) Old 02-07-2005, 06:32 PM Thread Starter
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Join Date: Feb 2005
Location: San Francisco, CA
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So I have been looking at cars around the area and I am trying to tell if the frame is straight. Yesterday I looked at a 65 coupe which had some oddities with the doors. One did not close all the way, and the other had a really tight windows. I am suspecting that the frame is not straight. But looking at the under carriage, I can't really tell.

Anyone have any tricks, methods to tell while I am inspecting a car to buy? Could the doors be a sign that something is off?

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post #2 of 2 (permalink) Old 02-07-2005, 07:03 PM
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Picture a rectangle in your mind. If the corners are square (90 degrees) then the measurement from one corner to its opposite will equall the length of measurement from the other two corners.

Measure from specific points on the framerails to other specific points and then do the same for the other side of the car.

You can also follow the car down the road and see if it tends to sit "crab like" i.e., its front and rear tires don't line up.

John Harvey

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