Im new to super duty axle, the truck I bought had 1 ton SD axles out of and 01 or 02. My question is about the front axle, I know mine is the D60 version, Does this mean I can pick up any lock for a D60? As long as it has the right spline count of course.

yes. I ran the Warn SS series on my 99, just make sure you put them in right. If you don't, the o-ring won't seal. 60 doesn't matter as the 50 uses the same outers.

i'm guessing you[re talking about locking difs. yea a 60 is a 60the are all the same. you want 35 spline side gears.

Yup, didnt realize I miss spelt that:homer: Right on thanks for the help.