I think jasonmt may be able to answer this one for me, he seems to be into the big Ford trucks. :D
Can you get an F-450/550 with 4x4 DRW?

450 and 550 are available in 4x4 and 4x2

auto or 6 speed

60" Cab to axle or 84" cab to axle

the reg cab's also have a 100" ish cab to axle length.

We use 550 4x4 crewcab's with 60" cab to axle all the time for highway rescue rigs we build at work - the wheelbase on these is 176.2"

We have used the 84" CA version ocasionally - but with its 200.8" wheelbase and 4x4 - the thing turns wider than an aircraft carrier. :eek:

The 176" version I can get thru most drivethrus :D

we get for around 45000-47000 or so CDN with PSD/auto/4x4/ambulance prep/AC

there is an option called the Low Deflection Package - which is basically a 2" cast steel lift block added in. Nice when ya got a lot of weight out behind the rear axle centerline. :cool:

I love the XLT seats ....... comfy

F-450/550 only comes in DRW as no SRW is offered. F-450 has Dana 60/Dana 80 for axles, F-550 has Dana 60/135 for axles. Like STOKJEEP mentioned, drive thrus are now more like drive overs. Available engines are the V-10 or the PSD with 6 Speed manual or a 4 speed auto. 4x4 or 4x2 are available, with the suspension on the front being very similar between 2 and 4 wheel drive models. All kitted out, with welder and equipment on the back, replacement value ( what it is insured for ) is around $95,000 Can. These are the 450/550 models and wheelbases available, all have the 19.5" tires. Mine is the DRW Regular cab, 188.8" WB, PSD, 6 speed.

DRW Regular Cab
140.8"

DRW Regular Cab
164.8"

DRW Regular Cab
188.8"

DRW Regular Cab
200.8"

DRW SuperCab
161.8"

DRW Crew Cab
176.2"

DRW Crew Cab
200.2"

Thanks guys.

We build these kinda rigs using the 550 as the base .........

http://www.profire.net/newest/images/agassizf550rescue1.jpg

http://www.profire.net/newest/images/elkfordf550rescue1.jpg

A F450/550 would be a killer basis for an offroad mini-motorhome, switching the front hubs to SRW type and running 335/80R20s (41") or even 365/80R20s (43" tall, 14.4" wide).
Gearing with the diesels is 4.88, V10 5.38. Just right for big tires.
Charlie