Steering box differences

[TerryD]

I'm trying to decide if I'm going to part out the Suburban and was comparing part numbers to see what will work on my K2500. Both trucks use the same pitman arm but have different part numbers for the steering boxes. I was wondering what the difference is between them? The K2500 needs a new box pretty bad and I just put a new pitman arm on the Suburban.

 

[twomanymontes]

I believe the difference is the turn ratio. The amount of turns lock to lock.