U-Joint Replacement

Would the spicer 5-153X be fine as well? From what I’ve read they are good. Replacing my u joints on my 06 LJ

Spicer 5-153X
Unless you're doing a lot of deep soupy mud I would not go with a greasable u-joint, especially the 5-153x which is for the driveshaft. The 5-153x has a grease zerk in its body with grease channels drilled through the body that weakens it. I'd go for the Spicer 5-1310x if you're talking about your driveshafts. Only if you're a regular deep soupy mud guy would I go for a greasable u-joint like current premium sealed u-joints like the triple-sealed 5-1310x which is stronger and more durable than what the factory installed.

If you're talking about the axle shaft u-joint I'd definitely only go for the triple sealed 5-760x. If you really really need a greaseable for the front axle shafts I'd go for the Spicer 5-3226x. Just know the 5-760 is a superb u-joint and was actually designed by Spicer for the then upcoming TJ Rubicon's front axle shafts. Jeep wanted a stronger and more durable u-joint for the Rubicon's axle shafts which is how the 5-760x came to be. The 5-760x and 1310x are up to 10X more durable (not 10X stronger) than their predecessors.

At one point all 6 of my driveshaft u-joints were greasable, what a frigging mistake. It was hard and a PITA to keep them all greased. I converted all to Spicer's latest more durable sealed series and never looked back.

 
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Unless you're doing a lot of deep soupy mud I would not go with a greasable u-joint, especially the 5-153x which is for the driveshaft. The 5-153x has a grease zerk in its body with grease channels drilled through the body that weakens it. I'd go for the Spicer 5-1310x if you're talking about your driveshafts. Only if you're a regular deep soupy mud guy would I go for a greasable u-joint like current premium sealed u-joints like the triple-sealed 5-1310x which is stronger and more durable than what the factory installed.

If you're talking about the axle shaft u-joint I'd definitely only go for the triple sealed 5-760x. If you really really need a greaseable for the front axle shafts I'd go for the Spicer 5-3226x. Just know the 5-760 is a superb u-joint and was actually designed by Spicer for the then upcoming TJ Rubicon's front axle shafts. Jeep wanted a stronger and more durable u-joint for the Rubicon's axle shafts which is how the 5-760x came to be. The 5-760x and 1310x are up to 10X more durable (not 10X stronger) than their predecessors.

At one point all 6 of my driveshaft u-joints were greasable, what a frigging mistake. It was hard and a PITA to keep them all greased. I converted all to Spicer's latest more durable sealed series and never looked back.


I’m replacing all of them on the front and rear. Just to make sure, you suggest the 5-760X for the cardan u-joint then the 1310X for all other joints? I haven’t gone mudding at all.

Right now I’m just daily driving on the roads for the winter.
 
I’m replacing all of them on the front and rear. Just to make sure, you suggest the 5-760X for the cardan u-joint then the 1310X for all other joints? I haven’t gone mudding at all.
The 5-760x is only for the front axle shafts. Go for the 5-1310x for all your driveshaft u-joints which assumes you are driving a standard TJ and not a Rubicon.
 
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@Jerry Bransford

Took off the splined end of my front drive shaft to replace the boot. Any idea why there’s a missing spline?


BD7DED3F-03D4-46DA-89CE-253AF3B7267B.jpeg
 
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Last edited:
@Jerry Bransford

Took off the splined end of my front drive shaft to replace the boot. Any idea why there’s a missing spline?


View attachment 481714

That is what some call keyed or double spline. It is commonly used for mid ship (carrier bearing) applications so that the installer does not install one half of the driveshaft 180 degrees out. No big deal using them on regular shafts.
 
Can you get it get recoated? My double cardan on another thread I posted is bad. Should I just get a new shaft lmao

No on recoating. Yes get a new shaft. Not cost effective at this point to try and repair.
 
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