if it's the front suspension wishbone bushes you're refering to, the bushes themselves are between £3-£6, but a new complete wishbone is only £15-£30 which makes the job a lot easier. also you will need a new balljoint pinch bolt (& nut). if a garage is doing it, labour costs will depend where you live, but should take no more the 30 mins(per side) for a complete wishbone change or maybe up to an hour to change individual bushes in you old wishbone. go for the complete new wishbone option as you also get a new balljoint as well!
jim, April 2010