Got the car back and it's absolutely fine.The non Fiat dealer (Macklin Motors, Linwood) are placing the blame firmly on Arnold Clark Fiat, Renfrew Road, Paisley (and I've spoken to David in Arnold Clark Paisley's parts department who confirmed to me that it was impossible to get the separate tie arm) so I believe Macklin.Would anyone know if this TRW part is the correct one? From the description it seems to be and the Croma is listed as one of the recipients of this part.http://seekpart24.com/trw/axial-joint-tie-rod-jar958?c=100198&at=14872Thanks Once again everyone for all of your help.
Glad you got it sorted Brian, as I said in my previous post I suspected the inner ball joints, these are not normally available in Rip Off Britain so you have to replace the whole rack. I confirm that if you did buy a new rack these inner ball joints (Track arms) come would come as part of it, but you don't usually get the tie rod ends. The Seekpart website you showed looks to be a good source of parts, I have bookmarked it for future reference.
I also nominate myself for berk of the year. Whilst I was doing the research on this I also started to compare the cost of steering racks from Germany. I was on it for 10 minutes before I realised the one small flaw in my plan. :doh: