Need help with PDM T/C bushings

[andrave]

Ok I took my stock rods off, burnt the old bushings out, and I found (to my dismay) that my driver's and passenger T/C rods are different. Each one has a sort of lip that goes around the outside. Anyway I'm taking the new poly bushings and my old rods down to a machine shop to have the new ones pressed in but before I do I need to know if that lip is supposed to be there. On the driver's side the lip was just that- a little lip around the edge of the hole where the bushing goes in. But on the passenger side its thicker.
If those lips need to come out, what do I need to get them out? they look welded or hardcore pressed in.
I searched but couldn't find much info.
Thanks for your help.