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Old December 1st, 2011, 01:49 AM   #1
cushion101990
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Dana 50

Whats the deal with the 50s from the superduty? Not the ttb.... I kno the ring gear is smaller and the shafts are only 30 spline. but how mu?h weaker are they than a stock 60 How much stronger are they than a stock 44?
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Old December 1st, 2011, 06:55 AM   #2
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From my understanding the main difference was the 9" ring gear. Other than that my assumption was equal strength.
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Old December 1st, 2011, 08:43 AM   #3
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Are u unit bearings weaker than a older 60 with individually bearings
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Old December 1st, 2011, 09:49 AM   #4
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Are u unit bearings weaker than a older 60 with individually bearings
If you are comparing old 60's to the new 50's and 60's then that is a completely different question. That has nothing to do with the difference between the 50 and the 60. I do not know which is stronger.
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Old December 1st, 2011, 06:48 PM   #5
littletrucker
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Unit bearings are probably just as strong as a tapered roller bearing.. But most unit bearings are designed to run rims with offset that pull the tires in, and tapered roller bearings generally can run a rim with less backspacing with less problems.. Run a rim with Small backspacing on unit bearings and you are probably gonna eat them up.. NOT because they are weak, but because you are loading the bearing in a manner it wasnt designed for.

Ive really never seen problems with bearings, a lot of other things are gonna go before the bearings..
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Old December 2nd, 2011, 02:04 PM   #6
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The reason I ask is because I have a f250 with the v10 and am picking up a set of axles with the 4.30 gears in them to under the superduty. Since I got the stock axle that are 373 gears I thought about putting them under the ranger... Whats your guys opinion on how well that 50 would hold up to 40s and 513s?
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Old December 2nd, 2011, 02:08 PM   #7
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Originally Posted by cushion101990 View Post
The reason I ask is because I have a f250 with the v10 and am picking up a set of axles with the 4.30 gears in them to under the superduty. Since I got the stock axle that are 373 gears I thought about putting them under the ranger... Whats your guys opinion on how well that 50 would hold up to 40s and 513s?
What year F250? IIRC '04+ should be a Dana 60. From my knowledge there were only 50's put in from 99 to 03 in all 250's and 350's, unless they were duallies, duallies got the 60's.
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Old December 2nd, 2011, 02:09 PM   #8
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Ya I have a 01 its a 50
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Old December 2nd, 2011, 09:11 PM   #9
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About the only diffrebce I could see (besides the smaller ring gear etc) on the 50-60 is that the 50 axle shafts neck down to 1.3 inches next to the splines in the diff and the 60 stays at 1.5
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Old December 2nd, 2011, 11:26 PM   #10
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What size is a dana 44 chromo shaft? Thats what I got no and havent broke one
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