72 drag link and tie rods question

[Pont406]

I am converting 69 c10 to a disc brakes from 72 c10. What is a difference between inner and outer tie rods? The way I see is that a mounting holes on the spindle and draglink are different size. Are the lenght the same or not? Can someone please post a pic of 71 or 72 c10 drag link and tie rods. I dont want to take front end a part untill I get all the parts. Thanks