do i need to get a like for like diff or is there ones off a different "engine size" that will fit? where can i get hold of a secondhand diff?
cheers

hi, i hav a 318is. it has a slight whinning noise from the rear, i think its proberly the diff. is there anything i can do to to confirm that. if it is the diff is there any way of fixing it or do i need to sorce a new one.
thanks matty