rear end question - Ford Powerstroke Diesel Forum
 
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post #1 of 5 Old 12-22-2009, 08:11 AM Thread Starter
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rear end question

I need to find out what rear end i have i'm pretty sure i have 373 gears but, is it a Dana or a Sterling, is it 10.25 or 10.5. The tag on the inspection plate is rusted and not legible. I'm wanting to go to a 4:10 rear but need to know what i have so i can get the right gears. Any help would be appreciated

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post #2 of 5 Old 12-22-2009, 10:52 AM
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On the Dually you have the Dana 80, you could have either 3:73 or 4:10, there should be a tag on the diff that has the code on it, should be attached to one of the bolts on the diff cover. If not simply mark the yoke on the drive shaft and on the pumpkin and jack the rear end up and count how many times the drive shaft turns to 1 rotation of the wheel.

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post #3 of 5 Old 12-22-2009, 11:01 AM
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Weren't 90% of the duallies 4:10 dana 80's?
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post #4 of 5 Old 12-22-2009, 02:54 PM Thread Starter
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yeah the tag is rusted so bad i cant read it, so i guess im stuck jackin the truck up

2008 F250 Lariat super cab long bed FX4
K&N intake
Spartan Tuner


(last truck)
Early 99 2wd f350 Lariat long bed dually
22.5 Alcoa's
diablo sport predator
bully dog intake
zoodad
6" stacks
6" Fabtech Lift
Fabtech trac bars
Fabtech steering dampner
map fooler
gauges
2006 front end
HID's in headlights and fogs




http://www.mileanhour.com
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post #5 of 5 Old 12-22-2009, 03:13 PM
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You might also look on the drivers side door jamb....I have a decal there that has a rear-end code listed.

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