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I think you would not get the needed results to try and grease the spline shaft in that manner. The spline is about 6-8 inches long and the entire length needs to have lubricant. And since it is not under pressure the only way to make sure the full length is lubed is to disassemble it.
Yeah, greese will not do the job as well as if you were to put some heavy duty oil in it and let it mix up in there. Definetly think would be best to disassemble to lubricate.
Take a look at the responses to the replies to "clunk when driving in snow" article in this section. There are several good suggestions on solving your problem there.
Last edited by michigan66; 02-03-2010 at 04:29 AM.
Reason: Clarity
I don't have "The" problem and I have read all of the comments associated with lubricating the splines. I have just been thinking that if the female spline area was blocked off from the rest of the shaft why wouldn't a high pressure grease application, filling the blocked area forcing the grease to flow between the splines and lubricate them and eliminate the need to dis-assemble the shaft.
The installation of a Zerk fitting (If it would work) would eliminate this dis-assembly and make life easier, like Zerks on a U-joint.