what's my rear end?! - Ford Powerstroke Diesel Forum
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post #1 of 7 Old 08-12-2008, 05:08 PM Thread Starter
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what's my rear end?!

How can I tell which rear end I have on my 06 power stroke?
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post #2 of 7 Old 08-12-2008, 05:24 PM
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Originally Posted by dkt67 View Post
How can I tell which rear end I have on my 06 power stroke?
Need more info about truck. Like F-250 or F-350 and SRW or DRW. Are you wanting the gear ratio or the actual size/type of differential?

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post #3 of 7 Old 08-12-2008, 05:29 PM Thread Starter
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It's a SRW F250. I would like to know the ratio and actual type/size.
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post #4 of 7 Old 08-12-2008, 05:40 PM
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Originally Posted by dkt67 View Post
It's a SRW F250. I would like to know the ratio and actual type/size.
If it is an F-250 then it has 3:73 gears. Couldn't get 4:10 unless you went with a dually from 05 on. It is either a dana 50 or 60 but not sure which one. If no one chimes in, you could call a dealership, ask for parts and give them your VIN#. They could tell you what it is and how to identify it by looking at the tag on the diff. cover.

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post #5 of 7 Old 08-12-2008, 05:51 PM
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Should be a Sterling rear end 10.5 inch I think not sure of the model number, Dana 80 in DRW.

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post #6 of 7 Old 08-12-2008, 05:53 PM
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Should be a Sterling rear end 10.5 inch I think not sure of the model number, Dana 80 in DRW.
I thought the Sterling diffs. were only in the F-450 and F-550.

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post #7 of 7 Old 08-13-2008, 08:34 AM
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It's a Sterling 10.5 the front is a Dana 60(if it's a 4x4). The ratio should be 3.73 but you can verify that by looking at the aluminum tag bolted to the diff. If it starts with 3L73 then it's a locking 3.73. FYI the 3L may be covered by the bolt.

Last edited by bigd4x4; 08-13-2008 at 08:39 AM.
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