Universal Joint Lubrication?

[CHS]

Thanks Plym46. They seem to be fine. I know they were replaced about 40 years ago. I noticed in my service manual the type of grease to use, they didn't mention how to grease them.

[plym_46]

unless the boot or gaiter is torn or split and if the joint does not require service, the grease that was applied new should still be in there and good to go.  With all the tiny needle bearing that comprise the system, you probably just need to maybe ipen the cover and see if grease is still present within the joint.  If it is I would leave it alone unless you suspect the joint is not working properly.

[CHS]

Thanks Todd, I am planning on changing the oil and flushing the cooling system soon. I will unbolt the driveshaft and give it a try.
Thanks again!

[TodFitch]

I was told it is the old ball and trunion type. I was also told they are expensive to replace when they go bad. That is why I want to try and lubricate them.
Thank you for taking the time to respond.

Pull the drive shaft. There is a sheet metal cover over the end of the opening on the housing that you carefully remove (don't want to break the tabs). Under the cover is a spring that centers the drive shaft, save that. Now if you carefully push the housing back you'll have access to the balls and all the little rollers between the balls and the pin of the trunnion. Oh yes, there are spring loaded caps on the top of the balls. Without losing any of those myriad pieces, remove, clean and lubricate all the bits and pieces. If I recall correctly the amount of grease required is about a tablespoon. Also if I recall correctly the manual calls for a "short fiber" grease. I think modern wheel bearing grease should work but I can't remember if I used that last time or chassis grease. Re-assemble in reverse order.

The only tools you need are the wrenches to get the drive shaft off and pliers and/or screwdriver to deal with the tabs on the cover.

Some of them had a plugged hole in the body which can be removed to add grease, most that I've seen don't have that.

[CHS]

I was told it is the old ball and trunion type. I was also told they are expensive to replace when they go bad. That is why I want to try and lubricate them.
Thank you for taking the time to respond.

[plym_46]

What type off joint do your have?  Some of them have a zerk fitting, some were pre lubed and sealed.  Pictures would be helpful

[CHS]

Is there a way to lubricate the universal joints on a 55 Plymouth?