As many others our rear sill is bad (in fact: mostly gone). We're looking for options te replace it. A landcruiser specialist here sells pre-79 rear sills. Can we use this for our 62 FJ40?
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Not sure if you made a decision yet. But I just cut mine out and welded a new sill in, it is a 1962...I think. I was doing a sill and rear frame member. I used 2x2 square tubing for the sill and the original corner wings were reusable. The 2x2 square tubing isn't a perfect fit, so I will have to fab up a couple pieces to connect my bed to the sill and seal the doors when closed. The 2x2 needed holes cut to get body mounts in.
Not sure if a 2.5" x 2.5" square tubing or similar would work or if you can find any.
I would think you could easily have a sheet metal shop or welding shop bend you a piece of channel steel that is about 2.5" wide channel and matches exactly what you cut out. You might need to drill a few holes but this would be cheap.
Good luck and post pics to share.
This is wat is left of my U channel, without reinforcements you see what I mean?
Don't want to hijack Daves thread, so I'll post this in my own rear sill thread. (For LITP)
I do/did have the U channel behind the rear sill. I got these pics from Dave. I hope you can see the reinforcements I mean inside the U channel, right next to the body mounts.
Oops, I jast noticed the pics were upside-down. Fixed that.
Could somebody help me with the width of the box part? thanks...