want to swap to a 3.73 rear end? - Ford Powerstroke Diesel Forum
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Old 05-21-2013, 10:21 AM
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want to swap to a 3.73 rear end?

I know this isn't the for sale section but I figured I'd get a lot my traffic here. I'm looking to swap my rear end (3.73s) with someone who has either a 4.10 or 4.30 rear end. Changing gears is a going to be exspensive and ive seen a bunch of post lately about guys wanting a longer gear for better fuel economy. If anyone is interested in swapping please let me know and hopefully we can work something out
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Old 05-22-2013, 05:42 AM
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You will need to swap the front end also. The rear gear ratio needs to be the same as the front unless you plan to run different size tires to compensate. I assume the 4x4 in the pic is yours.
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Old 05-22-2013, 08:24 AM
Can you hear the derail??

 

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I'd trade ya but mine isn't a Dana 80
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Old 05-22-2013, 05:57 PM
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I understand that I will need to change the front also, but the rear is more important right now
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Old 05-22-2013, 05:59 PM
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Quote:
Originally Posted by 351fifty View Post
I'd trade ya but mine isn't a Dana 80
One step forward and two steps back
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Old 07-13-2013, 05:23 AM
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94slowbra call Modern autoparts in picayune. Last time I was out there they had a few Dana 80's
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Old 07-13-2013, 05:41 AM
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I can understand with you having 37s that your fuel economy in town and your take off might suck,

I have 373s myself, but I like them. Why are you wanting to change? Car-part.com may help you out......
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Old 07-13-2013, 05:43 AM
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Wait, your sig says you have 4:30s, but you're looking for 4:10s or 4:30s....?
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Old 07-18-2013, 01:11 PM
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sorry i forgot about this thread. i found a somewhat local guy, 3 hrs away who wanted the opposite. his truck had a factory 4.30 rear end and he was running stock tires. he was looking for better fuel economy so 3.73s were good for him. we swapped about a month ago and i couldnt be happier. better take off, better in town mpg, better towing performance, lower egts across board and easier on my tranny. swapped in a day and only cost about $75 in fuel. plus its a factory rear so its good quality parts. now i just need to regear the front
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Old 08-08-2013, 08:03 PM
Can you hear the derail??

 

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Hey bud may not be to close but here is something you may want
2007 Ford F350 Dually 4.30 Ratio Front Differential
Has 4:30 gears and it's a whole axle
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