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Toyota Land Cruiser FJ40 Wheelwell Replacement


Rear wheel well rust is a common problem on FJ40s, it almost seems as if it was a factory option. This ’67 was pretty bad, with a quart of bondo filling the holes on each side. We looked into buying correct replacement panels, but (like everything on a land cruiser) they weren’t cheap. About $150 a side. Since I don't care if my truck is "factory correct", I started wondering if we could make our own panels out of sheet steel. It would probably be ugly, and not have those little ridges anymore. It would also be any thickness we wanted and would be lots cheaper.

We found out that a local steel place would cut sheet steel to any specifications we wanted, the steel is sold by the square foot and they charged by the foot for the cut. We decided on 1/8” steel and made our measurements. 1 week and $65 later we had ourselves a new wheel well. Some assembly required.

Like all good projects, this one started off with a hole saw and a saws-all. Disassembly is simple, basically you cut out the panels, but leave enough on the edges to align the new pieces. If you look at the assembly from the bottom, you will see 2 brackets in the corner of the quarterpanel along the top of the wheel well. I don’t recommend cutting these off, they will be good anchors for the new steel. Something else that should be kept if possible is the seat belt anchor bracket. Ours was too rusted to keep. I’ve marked these 3 interesting items with a “here” next to them in the picture to the right.

The towel is on the tire to protect it from hot metal chunks; we ended up using a cutting torch in places. The rear curve and the previously mentioned brackets were tough to cut. A jigsaw worked well most of the way around, but we needed the saws-all to cut through all that bondo and rust. The large rusty bracket in the bottom left of the picture below is the seatbelt anchor.

We wanted to leave enough of the original metal to properly align the new pieces. After everything was cut out, Jason decided to sandblast it. Wise choice, I think. Looks pretty good, will help with the welding and gets rid of all the old rust to keep it from spreading. When we do the next side, we aren’t going to bother keeping this frame of metal. The lip from the top of the old wheel well where it joined the quarter panel and the lip of the inside piece where it joined the floor are enough to line it all up.

Here it is tack welded in place. We welded it entirely, as in every seam was completely welded. It is very strong. I weigh 220lbs, and I jumped up and down on it with all the viciousness I could muster and it didn’t budge. I jumped on the other side (still stock) and put a big dent in it! Why is this cool to me? Well, mostly because this is where the roll bar (soon to be roll cage) mounts. Below is a picture of it mostly finished. It was cold and dark by this point, so this is the last picture I took of the project.

Completely welding every edge was strong, but the heat warped the quarter panel. When we get around to doing the other side, we will weld it in short sections to the quarter panel, around one inch every 4 inches or so, with time between welds to let it cool. 1/8” steel is pretty heavy for body parts, and after welding the 3 pieces together and then to the floor it should be rigid enough to get away with the short welds to the quarter panel. Also, since we now know not to cut off the stock reinforcement brackets, we can also weld to those for increased strength.






Created by: jcomp last modification: Tuesday 04 of September, 2007 [20:43:35 UTC] by jcomp