I made the same mistake on my fender. I did not bother to grind it down. It would be better just to buy another newer condition truck some day.
You obviously enjoy what you are doing. The work can be really satisfying once everything lines up perfectly.
BTW, what do you do in the even the inner fender is rotted where it joins the floor and the inner side wall? Make a new fender if existing one is hard to find? I imagine cutting out a curve sheet metal, then putting a upward 90 degree bend on one side, and 90 degree bend on other would be best.
H, Don't know what mistake on the fender you are talking about. My fenders are an OEM and an aftermarket with no welding or rust repairs on either. Please advise??
Now the rear quarters, inner quarter panels, and cargo floor corners are still OEM off a donor vehicle with rust repaired if needed. I used what I could off those to match up to my project. Any short or missing areas I fabricated out of 16,18, or 20 gauge sheet metal pending what area they were going in. All my rust was cut out and new sheet metal was bent, cut, patched and welded... Not just skinned over and body filled up. Inner panels as well.
Buying a rust free rig would be ideal. However, I got this rig in lieu of partial payment from another LC deal and wanted to save it instead of letting it go to the scrapyard. Even it extends its life for a couple more years and I think it will have many more than just a few. All in all I have approx. 400.00 tied up in sheet metal, welding consumables, and body filler. Yes, my time is worth a lot more than that, but it's a passion and for fun so I don't mind.
I do enjoy welding and fabricating, been doing it off and on for a few years. I like the challenge of any project. If it were easy I probably wouldn't do it. Usually when things get boring or too simple I find a new project. The LCs I've redone keep me pretty happy and challenged, along with other projects like building bumpers, racks, BBQ pits, and custom items, etc.. for people..
J