[theastronaut]

More metalwork on the cab. The firewall had a lot of extra holes to fill in. It'll have a hydraulic clutch and an aftermarket wiring harness so none of those holes were needed anymore. I made a bigger panel to fill in a bunch the smaller holes instead of filling them individually.














A notch had been made in the firewall seam for clearance around the new engine. I tacked the two layers together to keep them from flexing or separating so the seam sealer won't be upset later on.




Determining a radius.




Radius and allowance for the flange scribed into a sheet of metal.




Flanged formed using a steel block and mallet initially.




Turning a curved flange causes the panel to distort, so I used a section of round bar in the vise and a hammer to stretch the flange out to take out the distortion.






Trimmed and welded in place.