I used .125 when I modified the wagon towers the first time. Removed them altogether later down the road..
I didnt use any template, I first removed the small hump down the middle of the tower to see how much room I had between the tower and the spring. Then widened the opening so I had about a 1/2" between tower and spring. Then cut the plate to cover the opening. I used the piece cut from one side to as a templet for the other side.
Unlike the Crites kit, I covered the exposed control arms to protest the bushing from the heat coming from the headers.

Charlie
MidnightAngelRacing.com

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as the clock strikes midnight...

I didnt red light, the tree was slow!!!