Well, I'm finally back at it. I got back started on the SX/4 the second week of this month. I bought a replacement driver's door last fall because I decided it would be a lot easier than fixing all the rust on mine. I stripped the guts out of the old door and although the replacement isn't rusty it does have some minor damage so I repaired some of that. On the inside of the door where the tag is there's a bolt near the bottom that holds the runner for the window. On my replacement door that hole was broken out somehow so I had to weld in a patch to replace it. There's also a dent in the upper window frame I'll get to later and a bit of a bend in the inner edge just above the door latch.
I got back to working on the driver's side and formed the rear half of the inner rocker:
I also formed a small piece for the floorboards where the wheel well meets the inner rocker and removed the reinforcement for the rear seatbelt bolt from the old rusty inner rocker:
Here's the car after the rusty part of the wheel well, a small rusty area of the floorboards and the rear half of the inner rocker was removed and prepped for welding:
And here's the new rear half of the inner rocker welded in:
The original inner rocker was pretty banged up so it turns out I didn't get perfect measurements from it. The completed new inner rocker is about 1/'4" lower in the middle where the front and rear halves meet than where the front and rear ends are so when I go to put the outer rockers on its going to take some tweaking to make it fit and look okay. At least this isn't an area where fit is critical like the door frame.
The next part I have to tackle is the lower door frame and the rusty/dented part of the rear quarter panel between the wheel well and door - you can see that area in the picture above between the door opening and the rear end of the inner rocker panel. I'm pretty nervous about that as I'll be cutting away key reference points for where the lower door frame goes and the top flange for the outer rocker so I have to get it very close or the door may not close right or at all or there will be big/mismatched gaps between the door and rear quarter or outer rocker - I can't be 1/4" out on that part.