Soak it down with good penetrating oil like PB Blaster or Koil. Not WD-40

Get a TRE tool removal tool, I got mine at Harbor freight for about ten dollars, pickle forks put a bind on the joint and you will destroy the TRE.

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I was taught another method by a Toyota team leader and it works. Here is a picture.

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David Fritzsche
1990 Ex-Cab V-6,5-speed, with a few mods
04.5 CTD Dodge 2500 Ram--Tow Rig
Roseville, CA

"Serenity through Sobriety"