RPO - where are they

[sagebel]

Special order? I know I couldn't get 4:10 on my truck (SRW)

Scott

 

[Ford_Forgotton]

Dually had a 3.73 limited slip, or 4.11 open option. You couldnt get a 4.11 limited slip tho. I believe all single wheels are 3.73 LS. In fact, the tag on the back of the diff cover should say "3 .73 LS" to indicate limited slip.

The LS option on these trucks is pretty poor tho. Sometimes they work, sometimes they dont.

 

[95_stroker]

His truck is a 99 and we are trying to figure out what the gear ratio is and just some additional information. That is why I was hoping to find out where these codes are then find the decoder site.

Here is a Ford axle code site.

Click here

Look on the door tag for what axle code is designated then cross reference it to that site.