Originally Posted by steve66
DONT!! grease the splines on your driveshaft. If you do you can put extra load on the bearings on your engine which will result in premature wear, light oil will be fine. Also be aware that wd40 is a degreasent and will infact cause rust. I have found white spray grease very good, inexpensive and designed for marine applications
Greasing the splines is ok ,
though i can see your point if you was to put a blob of really heavy thick grease ontop of the shaft & splines then shove it in it could cause a Hydraulic lock making
the drive shaft not go home proper ,
suppose then it then could put pressure on the bearings when you nip up the bolts on the leg ,
(( first day at work send the young apprentice around asking if anyone has a key for a hydraulic lock )
Some splined shafts have a small concave dimple on top that helps .
Id rather put a light coating of grease on the splines than try get it off when its rusted stuck .