Custom Transmission Tunnel Fabrication Part 2 - Template and Forming - 71 Camaro RS

We continue our custom transmission tunnel fabrication series by fabricating the firewall half of the custom transmission tunnel to fit our T56 transmission in our 71 Camaro RS restomod project car.

First we focus on creating a paper template. We begin by positioning the poster board paper over the metal rods. We tape multiple pieces of paper together to get a large enough piece. We then tape the paper to the floor board and firewall area to secure it. Then using a marker, we draw lines from the paper to the existing sheet metal so that we have reference marks to transfer to the sheet metal. We then trim the paper using a very sharp razor blade so that we are not forcing the paper around.

Next we transfer the poster board template over to 18 gauge sheet metal and trace around it using a sharpie. We cut the sheet metal using a 4.5" angle grinder with a cutoff wheel and then clean up the edges using a die grinder with 2" roloc discs. We leave about a 1/4" of material on the sides so that we can get a nice fit in the car.

We transfer the marks from our paper template to our sheet metal template and we begin forming the sheet metal over a 4" diameter piece of schedule 40 PVC pipe. After multiple trips from the bench to the 71 Camaro RS restomod, we finally have our first section of transmission tunnel.

In the next video, we are going to use the bead roller to replicate the factory bead in our custom transmission tunnel.

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