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Wrong diff gear ratio.

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Old Jun 15, 2017 | 10:45 AM
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Wrong diff gear ratio.

Ordered 2017 f350 4x4 with 430 diff ratio and rear diff e locker. Came with 373 diffs.
Want 430 diff can the dealer do this and what is required.No change in tire size.
 
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Old Jun 15, 2017 | 11:39 AM
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The gear ratio problem has been taken care of by
Ford dealer. No proble great service.
 
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Old Jun 15, 2017 | 05:58 PM
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Cost ?

Hello Campout,

By any chance did they tell you what it would have cost of you had paid for it ?

I am curious what a dealer would charge for a gear swap.

Thanks,
 
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Old Jun 15, 2017 | 08:06 PM
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Glad you have a dealer that will stand by their product. Cheap and easy swap for them.
 
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Old Jun 15, 2017 | 08:55 PM
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Originally Posted by Thenewboss
Glad you have a dealer that will stand by their product. Cheap and easy swap for them.
The ford gears aren't cheap, and no way to swap out ring and pinions quickly. Looking at a minimum of a days work for a very good seasoned mechanic to do it correctly. My concern for the OP is he has a truck with a tow capacity for 3.73 gears. I'm not an expert, but I don't think the dealer can change this unless ford is footing the bill and sending a new door jamb sticker?
 
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Old Jun 15, 2017 | 10:47 PM
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Or maybe they gave him a different truck with 4.30's. Would be interesting to find out what happened.
 
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Old Jun 15, 2017 | 11:42 PM
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Yeah OP, what exactly was the dealer's solution?
 
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Old Jun 16, 2017 | 06:20 AM
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Lightbulb

Originally Posted by Ron94150
The ford gears aren't cheap, and no way to swap out ring and pinions quickly. Looking at a minimum of a days work for a very good seasoned mechanic to do it correctly. My concern for the OP is he has a truck with a tow capacity for 3.73 gears. I'm not an expert, but I don't think the dealer can change this unless ford is footing the bill and sending a new door jamb sticker?
Interesting point. I don't believe the doostickers specifically identify the GCWR, but the cert label does list the axle ratio.

So, what does the label indicate: as ordered, or as built? If as built, then a new label would be in order.

HTH,
Jim / crewzer
 
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Old Jun 16, 2017 | 09:33 AM
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Ford gear swap

Originally Posted by Screamingbear
Hello Campout,

By any chance did they tell you what it would have cost of you had paid for it ?

I am curious what a dealer would charge for a gear swap.

Thanks,
Camp out
The dealer charge for the gear swap would be $ 4000 Canadian. They use Ford products only. The same price as most shops.
 
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Old Jun 16, 2017 | 09:43 AM
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Ive got about 1800 in my gear swap done by a very reputable 4x4 shop. They also gave a 1 year warranty. My gears are Yukon, because they are the only ones cutting 4.88's and 4.56's for the rear. I believe most US dealers charge 2-2500 for a gear swap.
 
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Old Jun 16, 2017 | 09:44 AM
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Wronge gears

Originally Posted by Ron94150
The ford gears aren't cheap, and no way to swap out ring and pinions quickly. Looking at a minimum of a days work for a very good seasoned mechanic to do it correctly. My concern for the OP is he has a truck with a tow capacity for 3.73 gears. I'm not an expert, but I don't think the dealer can change this unless ford is footing the bill and sending a new door jamb sticker?
Campout
2017 f350 super cap 8ft box fx4 camper package srw GVW 11500. Will be used for camper future 34ft 5th wheel.
 
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Old Jun 16, 2017 | 09:55 AM
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Quite a bit of difference in the rated capacity for 3.73 vs 4.30 gears. I would make sure my truck has the correct info on it. That 5th wheel would be pushing the capacity with 3.73's, especially loaded.

https://www.ford.com/resources/ford/...U_r2_Sep29.pdf

This is a brand new truck you ordered the way you needed it. Don't settle for good enough. Chances are there would never be an issue, but what if you have a wreck one day, and the insurance company gets involved and looks at what your pulling vs the rating of the truck. They could care less that the dealer stuck 4.30's in it. Just gives them ammo in court.
 
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Old Jun 16, 2017 | 10:33 AM
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Camp out
The dealer checked with Ford engineers for gear swap. I will check with Ford dealer for correct load tow spec and new door stickers if required. I will also check if rated as ordered.
2017 f350 6.2 srw 8ft box fx4 camper package 5th wheel prep 11,000 gvwr package.
Thanks for liabillity tip.
 
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Old Jun 16, 2017 | 10:41 AM
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No problem. I'm not the weight police by any means. I've towed and hauled well over capacity many times in the past. But I was always aware of the risk. Just don't want you thinking your good to go and then get blind sided one day, be it from insurance or law enforcement. I don't know how it is in Canada, but we have some states that are a lot more strict than others with non commercial weight enforcements.
 
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Old Jun 16, 2017 | 11:45 AM
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There is deffently a difference in gcwr 373/19500 - 430/23500 will check other weight/tow specs. Including vin specs. Want this vehicle as ordered with proper Identification.
 
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