My T-bucket frame

[Spanky]

I have a Spirit Cars frame which is 2" x 3" 3/16"-wall. I know Speedway uses 1/8" wall for their frames and I don't hear any complaints of frame-flex. What are the rest of you using for frames and do you think 3/16" wall tubing is overkill?

 

[LongJohn]

I think 1/8” is fine. There have been a bunch of frames with it used. I seem to remember going to 3/16” tube was a marketing idea so the frame could be tapped for brake line and wire clamps to clean up the looks of installation.

 

[RPM]

All of the frames I build are 2x3x3/16, I have built a few out of 1/4" wall, blown big blocks.