That doesn't sound right - are the wishbones correct to book spec. My rear ones are standard wishbones, the adjuster is just a tube with a threaded stud welded to it and I have set it as per Spuds advice -
http://www.haynes.co.uk/forums/showp...0&postcount=28
I've got a half nut on the outboard ends and have got 1/2deg of negative camber.