Ford 83-94 6.9 and 7.3L General Discussion of 83-94 6.9 and 7.3 Liter Ford Diesels

Gears in the rear

Old Feb 19, 2014 | 09:37 PM
  #21  
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Sadly I don't know , can't be to hard to find out who though

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Originally Posted by 4x4manonbroke
the wheels on my truck are for sale if someone wants them .. look at my pics .... $200.00 if interested PM me ....

How long do you think you will have the wheels for sale bud?
 

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Old Feb 20, 2014 | 10:50 AM
  #22  
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Default I done this exact gear change several year ago

I had a 2006 F350 DW I ordered the truck with 4.11 gear...The 5th wheel trailer I had then weighed 13,500...The truck pulled OK however the fuel mileage was 9 when hauling the trailer and 12 when not...So I had the ring and pinions changed to 3.55 WHAT A MISTAKE the truck was a lazy dog afterwards...Sure it got 16 on the HYWY when not hauling the trailer but 8 when hauling the trailer it was horrible...I wished I would have went to 3.73 and not made such a drastic change...When you drive something that weighs 8,000 LBS. fuel mileage should not be an issue...
 
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Old Feb 20, 2014 | 11:43 AM
  #23  
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exactly right, but still the thought of at least being able to get decent mileage on my rid would be a nice idea. I do not do a lot of hauling right now, so I wouldn't mind the swap
 
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Old Feb 20, 2014 | 06:03 PM
  #24  
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I am hoping with my 7.3 and only pulling a couple hundred miles on weekends to and from the lake, the 355 gear will do me just fine. Because the rest of the time I just roll empty. My barge and trailer weigh out about 3000 lbs.
 
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Old Feb 20, 2014 | 06:21 PM
  #25  
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You should be pretty good then, only real work would be going up those steep grades
 
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Old Feb 20, 2014 | 06:30 PM
  #26  
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All flat around here, it seems the only one having trouble are haulers and smaller engines......
 
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Old Feb 20, 2014 | 08:09 PM
  #27  
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I can't imagine any reason not to do the swap then
 
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Old Feb 21, 2014 | 02:05 AM
  #28  
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I am thinking that , like one of the others said, I will have to change internal
Diferencle also. The ring and pinion is 169.00 not sure on the other. Still
In the checking on stage.

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Mine is a semi float rear....
 

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Old Feb 21, 2014 | 07:35 AM
  #29  
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Don't believe so, I know it wouldn't hurt anything to leave it. But it should not be a requirement to change for it to work
 
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Old Feb 21, 2014 | 07:38 AM
  #30  
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I am talking to a pro at the ford dealer, Monday, then I will get the low down, enjoy ur weekend. O by the way the Vikings predict tomorrow is the end of the world. O well cya
 
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