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Old 01-30-2018, 06:52 PM
John Buchtenkirch John Buchtenkirch is offline
MetalShaper of the Month October 2012
 
Join Date: Jul 2009
Location: Glen Cove, Long Island
Posts: 1,675
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Quote:
Originally Posted by Jack 1957 View Post
I'll mount the suspension sub assemblies to the 49 frame. It's rust free and very strong with an X member like the convertibles used.
Most people don’t understand why or how much torsional strength a proper X member can add to a car’s frame. The diagonal members should be straight as they cross from rail to rail if you want to get the most torsional strength. The height of the X members web between its flanges is a factor as well. Most hot rod X members I’ve seen are made more for looks and supporting the floor, pedals & transmission rather than obtaining the highest torsional resistance possible. I’m in no way saying those hot rod X members are junk, they just have a different focus or goal. ~ John Buchtenkirch
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