have flat spots and need replace. The OEM units have non replacable universal joints. A DS shop can build a 2 piece for about $425 (Orlando FL price) but if you want OEM you will have to buy from Courtesy or other Nissan suppliers. Shop for price. I have seen OEM DS for $570 plus shipping from a Scotsdale Arizonia Nissan dealer. If interested let me know and I will sent you the link. If 1 piece the Z1 Platinum is supposed to be a vib free unit. I believe the 2 piece is the most vib free of all for the Z32 or else the factory would have used a 1 piece but they couldn't get the torsional harmonics to a satisfactory level.