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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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| | | | Joined: Aug 2007 Posts: 1,859 Grumpy old guy playing with trucks, cars, and boats | | Grumpy old guy playing with trucks, cars, and boats Joined: Aug 2007 Posts: 1,859 | aint metal fatigue a biotch. My guess is that the suspension and loads on the 1-tons flexed the crossmember vs flexing the frame rails. Then again the trucks did last for 60 years until now.
I would assume that the sharp corner on the flange from stamping produced a stress riser. I would also assume that the cross member height is insufficient for the total load applied, yet the main frame rails are more than sufficient.
Good photo Steve.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
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