sorted it...the piece of shit...it ended up being the offside...what a cock...should of done a full inspection but i hate lying under cars! two second hand shafts and 80 quid later its all fixed!

if anyone else has this problem then the way to find out which one it is is to jack the car up on the wish bone on one side so only one wheels spins (obviously this wont work if you have an lsd) engage a gear and let clutch go, hold your left foot down slightly on the break then at speeds as low as 20 indicated on the speedo you will feel it knock its twat off...i got under after i did this and gave the o/s one a good pulling about...twas fucked to say the least!

oh and well i could not source any new inner pot joints it was only a whole shaft for 140 quid or ford for 370 + vat...wankers

apparantly mk 4 5 and 6 fiestas have the same shafts is what i was told by my driveshaft man so if it happens on your small block mark 6 you can get some more cheaply!