Replacement leaf spring bushings quesiton

[kopeck]

Afternoon,

I have a new to me set of leaf springs to go on my '79 C10. They're in pretty darn good shape, at least compared to my current set. I figured "while I was there" I would replace all the bushings before installing the new springs.

I just took a look at my replacement bushings, and they all have a shoulder on one side where the original ones do not. I'm guessing they're fine, and the replacements have the shoulders for easier alignment but I figured I would ask before I got started.

Thanks,

K