All Aluminum frame?
The machining costs must offset the higher cost of the metal... Or perhaps since not very much steel is made here, it's probably way cheaper to ship aluminum... Who knows...
The exodus of weight has been happening for a long time, the triton engine in my van is more plastic than steel. As a result a warped intake manifold often results in a crankcase full of coolant.
That's what took out engine #1 in my van. I am running on a 40k mile Ford reman.
Thanks for the picture, Mel!
As for the fire on our service truck, sad irony is that we had used up the big fire extinguisher a few days prior on a small grass fire started by one of our techs torching out some rusted tower bolts. We attacked it with the indian can, but by that point it was far too involved to save it. Just stand back and watch the show...