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Join Date: May 2009
Location: Edmonton Alberta
Re: HPI vs Speed tech vs hellwig vs abc
When the frame was out of the 70 I could pick up the rear corner of the frame and lift up on it and it would twist a little (about 1-2"). I finished with the ABC kit and it would not flex at all. So I imagine it would help it out a bit compared to the stock frame. I only went with the ABC kit as it was only a 30 minute drive for me to pick it up.
This is the same story I was going to write. It makes a huge difference to stiffness. I chose ABC since I had the mini tub kit coming as well.
66 Malibu. STILL... Working toward participation in Optima events! Rebuild in progress.