Chris,
That will teach me for not reading the list carefully sorry about that I
thought you were cutting a hole for a shifter!
If you want to replace the floor Theo is right to use the spot weld cutter
in the car to keep to preserve the attaching flange and use plain old drill
bits in the car you are removing the floor from. After you drill out the
welds you may need to use the flat blade on and air hammer to actually get
the floor out but you do not want to deform the new floor or the old
mounting flange in the car you are restoring. Be sure to mig weld in the new
floor as it is a structural member and brazing is unsafe, unsightly and
illegal in Collision repair circles. To fit the new floor position it as
well as you can and drill a series of 1/8" holes through both panels and
then screw the floor together with #8 sheet metal screws as a test fit. Once
confidant the fit is good start to weld the panel in and when secure remove
the clamping screws and weld ALL of the holes up. Use a metal etching primer
like Sikkens CR and then seal the seams inside and out with a brushable body
seam sealer.
Best regards,
Tim Ronak
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