These trucks have now become the transporters for these
http://www.modelcarsmag.com/forums/index.php?showtopic=89540
But here are some of the pics from the construction & will show what the only flaw & the fix in the donor Ford kit
The dark spot on the frame is where I had to heat it to correct it
Of the three I have opened, two have had this problem
Here it is with the frame painted & axle installed