what's my rear end?!

[dkt67]

How can I tell which rear end I have on my 06 power stroke?

[dhanna6powerstroke]

Originally Posted by dkt67

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?

[dkt67]

It's a SRW F250. I would like to know the ratio and actual type/size.

[dhanna6powerstroke]

Originally Posted by dkt67

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.

[SDDan]

Should be a Sterling rear end 10.5 inch I think not sure of the model number, Dana 80 in DRW.

[dhanna6powerstroke]

Originally Posted by SDDan

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.

[bigd4x4]

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.