That would be great! I think it really needs it, particularly on the front. It sounds like an airplane propeller right now over 20 mph and I am concerned it is going to cause rapid wear of the u-joint. There is light contact at the t-case end when spinning it by hand at full extension. I initially thought it was dried out grease in the u-joints but with the driveshaft shaft off they move nice and smooth.
On the bright side, I was informed yesterday the rear driveshaft in it fits my TR8 and will allow me to eliminate the non-serviceable driveshaft it has now. The TR8 has a cv joint on one end that Triumph intended to be disposable. I have been surprised how many parts from the D1 fit the TR8. In the case of the driveshaft, it isnt the rotoflex driveshaft that fits, it is the Range Rover /ROW D1 non-rotoflex driveshaft that commonly is used to replace the D1 NAS rotoflex driveshaft. I also learned, which may be old news here, the part number (FRC8387) for the non rotoflex driveshaft, which is available new from the usual vendors for a little more than $100. I know many TR8 folks have paid hundreds of dollars for custom built driveshafts to replace the CV type driveshaft.