If you could be more specific it'd help, are your bushes the floflex ones?

I assume you mean the bottom arm which bolts to the hub. When i poly bushed mine i had to drill/burn out the inner bushes and press the new ones in, they're moulded in originally so aren't easy to get out.

There's another variation of wishbone too, the turbo's had an extra bracket for attaching the roll bar too, but the rest of the mountings should still be the same.

Might have a picture or two of mine when i painted and re bushed them a few months ago if you need to see how they were.