In part four of the auto-to-manual MKIV supra swap, I cover the install and modification of the stock MKIV automatic tunnel to fit your new manual transmission. The stock auto tunnel physically sits about 3/4" lower than the factory manual tunnel, so you need to trim it to fit, and then install the tunnel conversion product I offer.
This saves many hours of work versus removing the interior and dash, drilling out all the spot welds, and installing a OEM Toyota manual tunnel. This process takes about 30-45 minutes, versus 5+ hours to do the tunnel swap. It is a time saver, and you never see the tunnel underneath the interior panels anyway, so to me this is a no brainer.
Below is the video documenting the install. This process is exactly the same between right hand drive (RHD) and left hand drive (LHD) supras. The tunnel cover, along with all the other swap parts fit directly the same between the chassis, with only differences in the pedals, and clutch master cylinder.