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Re: Project "Bickle" 1948 1/2 ton 4.3 4l60e
16.25 is a center to center measurement, so if your pipes are 16.25 apart they will be almost 16.75 apart center to center. if you had clamshell mounts originally they will measure closer to 17" center to center. offset to the passenger side if you need to, but be mindful of the exhaust manifold clearance to the upper control arm on a 4x4.
I like your jig setup! I have done that too in the past. next truck I do will see me design repeatable weld in mounts.
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