axle codes

[9073]

Hi
Im planning on getting a Dana 60 to replace the ifs setup on my truck.
I need to know how i can figure out what my gear ratio is so i can buy one with the right ratio and not have to do any work to the internals

1. Where is the code or whatever at?

2.What ratios came on the 1990 f-250 4x4

3.55 and 4.10?
Thanks Matt

 

[Exekiel69]

the code for the gear ratio is at the drivers door and if you have the owners manual it is there if not post the code in the door and I look it up on my manual or someone wiser will know it already.

 

[9073]

the axle code from my 90 f250 is c9
i dont have an owners manual so if anyone knows that would be great

thanks matt

 

[Cowboy_Customs]

c9 is a 3.55 limited slip (posi)
here is a link to all the axle codes u could possibly need for a ford
http://www.drivetrain.com/Fordtrkratio_posidata.html

I see ya need a Dana 60, I happen to have a totally gutted one
Its a stupid story, (I hate my local pull it yerself junk yard)
Its got the knuckles, springplates, n swaybar. hehehe


:draw