Hey, Thanks for the replies.
So after a few more surface rust repairs, I got a chance to work on the rear quarter panels. I never modify any rear quarter panels before for over fenders or fender flares. Anyhow, did some research and then I did mine.
Also mocked up some 295 tires to see how she would fit behind these ulterior motive fender flares.
I seen videos where guys would just hack up their rear quarter panels, tacked the pie cuts and then just slap a bunch of silicon on it to "seal" it.
I guess that would work if it's a drift missile. I have seen where guys have done that and sometime later on, the silicon just droops down and is no longer sticking to that area properly. I wanted my car to last for a long time, hopefully still good long after I pass away one day.
Here is a detail video on how I pie cut my rear quarter panels and tacked it on, FULLY welded out so it's sealed up so no debris or moisture can get in.
And here is a short video on me welding the ulterior motive fender flares on and how I went to grind the welds down for a smooth surface. Of course, it will get some body filler so I can achieve that smooth curve. Thin metal will always distort especially when there is a lot of heat being put into it.