The Tunnel Ribs
The tunnel ribs spread the cornering loads seen by the lower control arms latitudinally across the tunnel. We molded these as one piece which was cut into 4 slices. The mold was a male/female system with an airbag in the middle with the veneer. The unit was placed in our screw press, which held the male against the female while the airbag was inflated to 140psi. You don't really want to get your finger into the mix with a setup like that.
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