If you're talking about the sheet metal spring, it doesn't look like it's available anymore, but there is an OEM retrofit part that has 2 Heim joints, BMW part number :23412301391, price is about $45 from a dealer, Chicago BMW price is $35.20 , but be prepared to wait at least a month if you do business with them. In the interim, I don't know if it is feasible to drill a small hole in the shift linkage rod, it's pretty small, and install a washer and a cotter pin. Only other thing I can think of , would be to thread the ends of the rod and put a nut on it, again not a whole of material to work with there.