I have a 1993 F250 7.3L NA w/ an extended cab XL. Do I have a Dana 50 or Dana 50-IFS? And is it a 4800 lbs axle?
I'm asking because I need to replace my u-joints and ball joints.

 

Did you do a search?

 

I did. Some say Dana 50 and others say Dana 50 IFS. Are they the same?

I even looked http://en.wikipedia.org/wiki/Dana_50
Also, I can't read the stamp on the housing; otherwise, that would answer my question. I live in rust central Alabama and I can't make out a single digit of the model number that is on the axle.

 

You have a Dana 50 twin traction beam independent.

 

Thank you.

 

How can I determine the weight? I see ball joints for 4600lbs, 3850lbs, and 3500lbs and I don't which one to choose. I'm "assuming" it's the 4600lbs since it's a 4x4 and has an extended cab BUT assumption is the mother of all ups!

 

Look at the sticker on the driver side b-pillar/door jamb: