We didn't drive the Chevy solid axle. The only one I saw had large offroad tires, etc. and we didn't think it was anything like what we would have purchased. From the looks of the lot, there were probably 50 or more fords with solid axles, and about 15 or so chevy IFS vans ready to ship. They also convert chevy vans from left hand drive to right hand drive for postal and overseas use. That's a major project, but it looks like they do a great job of it. The dash gets flipped and everything.
I agree about the duramax with the allison tranny, but that's not currently a choice. We drove one of the solid axle fords with the v10 and it was really strong. When you floor it at 75mph, it feels like it would easily top 100 mph.
SMB in Indiana mentioned that they had heard Ford was going to do an overhaul of the E vans for 2009 and also put the 6.4L engine in, but Quigley couldn't confirm either story.
2008 Ford E-350 Quigley 4x4 V10 - 164,000 miles
RB50, PH Top, Dual AGM Group 27 Deka, 2000 Tripplite Inv., No Propane or Water Systems
Van Weight 8,100 pounds, added one rear leaf spring, BFG AT KO LT265/70R17 E Tire press 50psi.