hello fellow z- drivers. I own an '81 5 speed ( R200 differential) n/a 280zx. I have a problem with my driveshaft. I need to replace my u-joints, but I know that these cannot be replaced because of the type of driveshaft used in this model year. I heard that the 260z has a simmilar driveshaft to the 280z with replaceable u-joints. I was wondering if it is possible to install a 260z driveshaft into a 280zx?. I hate to buy a new driveshaft that will give me the same problems later on. p.s. I drive my 280zx fairly hard. Any suggestions will gladly be appreciated.