LS400 Cut / Shave Technique

I've looked into fender rolling for my rears on my 96 LS400, but the car had a ton of rust removed, and is full of Bondo. 

I'd  like to try to cut the fenders my self, I've found some threads and  seen a few brief tutorials on other Lexus forums, and the two methods I've  seen are using a dremel with a cutting wheel or a 3" belt sander with a  sanding belt designed for metal.

I know my fenders are welded, with two pieces of steel, and I know if I cut past the welds it will split. 

What  I need advice on is, if I use a cutting wheel, is the idea to be  grinding the edge down gradually until I find the welds, or cutting  right in where I think they are? It makes more sense to grind until I  find them, but I don't really know how long of a process that is or how  many disks I'd burn through. My guess is that would take hours with a  belt sander...

Can anyone who's shaved or cut their fenders lend some advice?

Just get a grinder with a cutting wheel, sanding disk and go to town on it. The car doesnt have alot of value money wise so just have fun, enjoy it and learn from it.

Good advise dranom...I cut mine and sanded with an 80 grit flap disc on a 4" grinder, almost completely flat without splitting and no rust issues in cali. If it does split, you can use seam sealer or panel bonder. There's a thread on this. Believe Og commented on this. gl

yep, 4" cutting disk on an angle grinder! you will find that rolling the rears of any UCF is super hard since the metal is extra thick. cutting is usually the better choice anyway.

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