6.7L Power Stroke Diesel 2011-current Ford Powerstroke 6.7 L turbo diesel engine

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  #16  
Old 08-13-2010, 04:04 PM
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Originally Posted by rdenis
One other thing to keep in mind (at least for Canadian buyers), if you buy the camper certification option, you cannot get the 20" wheels - 18" only.

That might make some sense if you couldn't get the 20" wheels with the fifth wheel option. Go figure.
its center of gravity.. the 20's change it enough..

the 5th wheel weight is tied to another object, not just free balanced on the truck completely..

Sam
 
  #17  
Old 08-13-2010, 04:12 PM
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Ahhh CG change does make most sense, especially the sidewall deflection under loading on a radius turn - hadn't thought of that originally.

Good call!
 
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Old 08-13-2010, 04:36 PM
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yep.. Ford won't take the risk on the outside chance of a fully loaded camper causing a vehicle rollover.. they've had plenty of that with the Explorers..

Sam
 
  #19  
Old 08-16-2010, 01:01 PM
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Originally Posted by Champ198
question for Rickatic and other 2011 F350 owners:

What is the GVWR for your truck and do you have 20" wheels? The specs show the 2011 F350 is 10,000lb GVWR. Can you get a higher GVWR on the 2011 F350? There is a 68U extra payload option but I think it requires the 18" wheels.

Are you guys seeing any axle hop or shuddering when you begin pulling your heavy 5th wheels from a dead stop?

I have a 34ft Cedar Creek triple slide 5th wheel. Unloaded weight is 10,683 lbs, pin weight is 1962, Trailer GVWR is 13,962. I've never weighed it but we don't load it down.

My '08 F250 is pushed down pretty good with the pin weight (which we all know is always heavier. I'd say it's about 2200-2300 lbs since the bedroom with clothes and basement storage is at the front) I've had to add Timbren rubber springs to keep the bed somewhat level.

Will the 10,000 GVWR rating on the F350 and the extra spring keep me in good shape? I don't want to have to add any air bags or extra springs. Just looking for some reassurance that the bed will sit level with the 5th wheel on the bed.

I'm on the fence between the 3500 HD SRW and the F350 6.7 SRW CC SB right now.
I have F350 6.7 SRW and it does shudder a bit in 1st gear for a second or two from a dead stop, loaded 15000+ only when hot. 3000 lbs on pin and 350 rides level with no extra help, just factory OL spring. 3.31 axle works well also. Uses a lot of DEF towing heavy 7.5 gallons added so far in 6200 miles. Tire wear also uneven 15/32" remaining on fronts and 13/32" on rear. Rotated already to keep even. Tire man said it is normal to lose more rubber on drive axle than steering axle when pulling heavy High Profile trailers.

I haven't had any exposure to the GMs, so no comment on them, but I would buy my F350 again......in a "Heartbeat"
 
  #20  
Old 08-16-2010, 09:26 PM
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Shudder eh? I think I would bring that up with the dealer right?
 
  #21  
Old 08-16-2010, 09:27 PM
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that was just reported in the latest shootout too.. some shudder, wheel hop... loaded on takeoff

san
 
  #22  
Old 08-16-2010, 09:35 PM
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Where was that, or can we say? Shudder seems like slipping tranny plates, but wheel hop? Unless I'm crazy how can you get wheel hop on a loaded trailer, or any trailer, unless it's spinning the tires? I can tell ya that on my 10,500 5th wheel even the 6.7 ain't spinning tires on pavement.
 
  #23  
Old 08-16-2010, 09:58 PM
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  #24  
Old 08-16-2010, 10:11 PM
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Originally Posted by sdetweil
its center of gravity.. the 20's change it enough..

the 5th wheel weight is tied to another object, not just free balanced on the truck completely..

Sam
I have the 5th wheel prep kit, 3.55 locker, LWB and 20" wheels?
Are you guys talking about a slide in camper certificate?
How do 20" and 18" wheels change the CG if the tire diameters are the same.
Just askin'
 
  #25  
Old 08-16-2010, 10:17 PM
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Originally Posted by FORDTUF1
Where was that, or can we say? Shudder seems like slipping tranny plates, but wheel hop? Unless I'm crazy how can you get wheel hop on a loaded trailer, or any trailer, unless it's spinning the tires? I can tell ya that on my 10,500 5th wheel even the 6.7 ain't spinning tires on pavement.

The shudder feels like a transmission problem. Only happens when hot and fully loaded. Doesn't do it cold or even with 8,000lbs. load. It is not wheel hop, even though I have spun the tires on cement fully loaded in reverse pushing trailer up mild obstructions. That leaves a very BLACK mark on the road. Shudder usually happens at stop signs and red lights. I have not tried to put my foot in it on takeoff to see if it is different. It doesn't do it every time either. I'm going to wait until after the chips get flashed. Could be just the software. I once had a 95 T-Bird that did a similar shudder on only one hill in town. Changed trans fluid and that took care of it.
 
  #26  
Old 08-17-2010, 06:14 PM
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Originally Posted by Tomahawk
How do 20" and 18" wheels change the CG if the tire diameters are the same.
Just askin'
Exactly what I was thinking and what I know, it can't.

BTW
How far are you in Central IL?
I'm from little place called Pinckneyville.
 
  #27  
Old 08-17-2010, 07:41 PM
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I live about a mile south of the tiny town of White Heath,
it's located between Champaign and Monticello.

It's interesting that you can't get the slide in camper cert.
with the 20" wheels when the tires have a shorter sidewall.
 
  #28  
Old 08-17-2010, 08:59 PM
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I know about Champaign, the Pinckneyville Panthers win state basketball about every third year, in A or AA anyway.

Maybe they just haven't tested or submitted for the 20's because they might not have that many planned for sale.
 
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