26-04-2019, 12:12 AM
My RP has the same type early Hardy Spicer at the rear of the propshaft and, yes, the splines should be free to take up any variation in length. There is a grease nipple at the front of the joint to grease the splines. According to my handbook, the joint itself should be lubricated with SAE 140, although how it is supposed to stay there is a mystery. Woodrow recommends oiling the joint with SAE 140 on assembly and then filling it between 1/4 and 1/3rd full of grease through the big hole in the back before refitting it to the axle flange. I use CV joint grease for mine.