Sunday broke cool and sunny, and Jen was headed down to her father’s place for the day, so I thought I’d take advantage of the opportunity and try out a welding project to get my feet wet. Revisiting the truck, there’s a section on the base of the back step that’s rusted through from where water got into the truck and was trapped between the steel and the wood platform put in decades ago. It’s not a terrible amount, but just enough that I wanted to cut it out and weld fresh steel in place.
Saturday evening, I hit the Harbor Freight for some new sheetmetal tools, including a pneumatic metal nibbler, a third angle grinder, a smaller 3″ cutter, and a bunch of consumables. The angle grinder was on deep discount and it’s always good to have several of these so I’m not constantly swapping one disc for another. Now I’ve got a dedicated wire, cutter, and grinding wheel on standby.
At the truck, I jacked it up and took off the rear wheel for better access. I found it was easy to cut three sides of the rectangle but I had to use a grinder to shape the far side straight, as there was no easy way to get the cutoff wheel in there. I also realized the corded 3″ cutter isn’t very good for anything: the body of the tool is so big and bulky it doesn’t allow for any access to small or hard-to-reach locations, so I’m going to return that and buy a 3″ pneumatic extended cutter instead.
Then I used the nibbler to cut down some 20 gauge steel, realized it wasn’t the same thickness as the body on the truck, so I used a cutoff wheel to form a piece of 16 gauge that worked much better. I bought a simple Harbor Freight metal brake from the estate sale a few months ago but I realize I still need three things that it didn’t come with to make it work: a 3″ by 14″ piece of flat bar for the brake fence and a set of clamps for fastening the subject metal in place. I’ll have to buy the bar somewhere and use C-clamps when it’s time to really start bending metal. So instead I went with the tried and true method of clamping the metal tightly in a bench vise and pounding the shit out of it with a hammer.
Then it was a lot of fitting and grinding and fitting until I had the metal in the right size and shape, with a 90˚ bend at the bottom to match up with the underside of the body. I dialed the Eastwood welder in for 16 gauge steel and tacked a few sections in. Once I had it in place, I went around and filled in the gaps, then ground everything flat and smoothed it out with a flap wheel.
When that was done everything got coated with Eastwood Rust Encapsulator for insurance. Note the dust from grinding other surfaces on the interior of the truck; there was about a pound of metal dust to vacuum out when I was done.
I also put a copper backer on the holes the PO drilled in the floor, filled them in, and ground them down. Nice to have those closed up—there are a ton of small holes on the rear doors from the half-assed upholstery install that need the same treatment.
The other side didn’t look as bad as the driver’s, but when I started doing some exploratory cuts I realized it’s in about the same shape. Some more careful cutting and hammering and shaping of some flat steel produced a good patch, which I tacked in place. It’s going to take more work on this side, as the vertical part of the step folds under the floorpan, so I’ll cut and fit another section of steel and weld that flat on the floor. But overall I’m really really happy with the results so far.
I really like this welder and I’ve found it very easy to use now that I’ve dialed it in properly. I’m feeling much better about tackling the cowl vent project—that’s going to be a week or more of cutting and welding and shaping; far beyond this in terms of complexity. But at least I know I can melt metal together after I’ve cut it apart.