grease for drive shaft (1 Viewer)

[rc51kid]

I have my rear drive shaft out becouse I worked on the transfer case. I want to clean and lube it properly. First of all any grease recommendations? Should I just use a good high pressure grease? I know the u joints just fill until clean stuff flows out. Any rexomendations on the slip joint? How do I clean it out and how much fresh would I put in with out hydrolocking it? Do I just slide the two half's apart and wipe out what I can? Lube up the shaft by hand and slide back together? I think it was pretty full of old grease. I had to remove the zerk and to compres the shaft enough to get it off. Squirted out a good bit of old grease.

Edit. Just read a long thread about which grease to use. I am not going to over think the grease for the u joints. Just going to use some good quality grease and keep it fresh! But still. If you guys know about the slip joint cleaning please fill me in.

 

[richardlillard1]

Moly in the yoke and green grease in the u-joints.

 

[Kernal]

Remove the zerk fitting for the slip yolk, that will make it easier to remove and reinstall the yolk. Clean out the old grease very well, you want to do that to remove any contaminants and grit, then regrease the splines both inside the housing and on the splines of the slip yolk. If you want to get fancy you could pick up a small container of Loctite Moly paste or small tube of Honda Motorcycle grease (60% Moly, used on their driveshaft splines) and slather either of those on the splines with something like Valvoline Palladium 3% Moly grease (NAPA stores).

With the zerk removed any excess grease can be purged from the yolk cavity while reinstalling the yolk. With the zerk in place you may not be able to push the slip yolk back inside the shaft due to trapped air, so better to have the zerk out. Valvoline Palladium (3% Moly) is a good choice for the slip yolks and can be also used for the U-joints.

 

[rc51kid]

I have some palladium already and the zerk is out. So I just pull the half's apart, clean, lub, and slide them back into each other?

 

[LS1FJ40]

Yes.

For some reason I remember marking the two pieces so they lined back up. I just scratch the shaft and the slip joint then cleaned then greased then back together. I overfilled it a little then push the excess out where the seek was to make sure I got all of the air bubbles out. Not sure it was necessary...

Main thing is to get all the sand and crap out of there.

 

[mct75]

No moly in the u joints. Everything else is flexible.

 

[ajax1]

We use the pallidum moly in joints and slip yoke, mark shaft separate the shaft clean out all old grease then just lube up the splines good on both sections no need to squirt grease all back in to pack it and fill it that's what your trying to avoid. Reinstall shaft

 

[mrsleeve]

I just run good ol red wheel bearing grease in the U-joits and the same for the slip shafts, Only have to keep on gun loaded that that way

 

[canman]

IIRC the FSM calls for moly on the slip joint of the driveshafts. I keep two grease guns, a manual one for the u-joints and an air powered one for the knuckles and slip joints. I typically give the knuckles fifty to seventy "squirts" of grease once or twice a year depending on how much I drive it. I also remove my driveshafts once a year to clean out the grease. I get out all the old grease, clean with brake cleaner using plenty of shop towels and a coat hanger and the apply a liberal coating of moly grease to the splines. I found from experience that if I didn't do this on a yearly basis, I would get the infamous driveline "clunk" when starting from a stop as the driveshafts would get "hydro locked". I would also lube the u-joints once or twice a year - very important as well.