Is the TJ/XJ Axle Shaft a different diameter? - JeepForum.com
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Unread 12-26-2011, 10:41 PM   #1
idskot
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Is the TJ/XJ Axle Shaft a different diameter?

Recent my actuator went out, and I was looking for different ways to fixing it, and I of course inquired about a new actuator, and Posi-Lok, and was then informed I could forego the whole CAD system and swap in a TJ / XJ front axle shaft (passenger side), so I went and picked one up today.

But something struck me: is this shaft thicker than my stock YJ shafts?

Also, if anyone else has done this, where did you seal the axle?

I plan on doing the swap tomorrow, so information would be awesome!

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Unread 12-26-2011, 10:52 PM   #2
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Yup - the TJ/XJ shaft will fit.
You will need to install a NAPA 11800 seal in the passengers side of the diff in the axle tube.
Will require pulling the carrier out to install the seal.
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Unread 12-26-2011, 10:57 PM   #3
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i think Tjs are 30 spline. U can swap them in but need a locker or spiders with matching splines. Xj work. Look for the 270x ujoint axles 96 and up there the strongest oem.
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Unread 12-26-2011, 10:57 PM   #4
Joe Dillard
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The TJ/XJ 1 piece passenger side shafts are actually smaller in diameter.

I sealed my old HPD30 at the carrier. Lots of folks use Napa PN CR11800.

This is a TJ on top, YJ bottom & the seal package:


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Unread 12-26-2011, 10:59 PM   #5
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Quote:
Originally Posted by toolegit86 View Post
i think Tjs are 30 spline. U can swap them in but need a locker or spiders with matching splines. Xj work. Look for the 270x ujoint axles 96 and up there the strongest oem.
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Unread 12-26-2011, 11:01 PM   #6
toolegit86
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Before i broke my cad axle i was lookin to do this swap. And i was told tj shafts are 30 spline. And could do the swap if i put a locker or spiders n... I put a hp60 and trashed the 30 lol
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Unread 12-26-2011, 11:05 PM   #7
Joe Dillard
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Somebody gave you bogus info.

Check the TJ stock sticky spec post #8 here: http://www.jeepforum.com/forum/f9/st...1/#post4118396
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Unread 12-26-2011, 11:33 PM   #8
idskot
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Quote:
Originally Posted by Joe Dillard View Post
The TJ/XJ 1 piece passenger side shafts are actually smaller in diameter.

I sealed my old HPD30 at the carrier. Lots of folks use Napa PN CR11800.

This is a TJ on top, YJ bottom & the seal package:


Would it be considered bad practice to seal it at the CAD entry rather than at the carrier?

The reasoning behind this is because I've never took a carrier out, and I'd rather keep it simple and put more gear fluid in there.
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Unread 12-26-2011, 11:47 PM   #9
idskot
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Also: There's a bit of rust toward the end of the shaft, should I sand it down a tip?

And can I also reuse the ujoint I have already?


Here's a picture of the shaft (I pulled it out of an XJ)



(Excuse the dirty oil pan. I left it out side and the lawn guy was blowing stop everywhere.)
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Unread 12-27-2011, 12:14 AM   #10
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The seal goes at the end down there by the splines, where it's all nice and shiny so no need for sanding anything. If you Google "TJ shaft in YJ" you'll get tons of info.
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Unread 12-27-2011, 01:34 AM   #11
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Quote:
Originally Posted by timatoe View Post
The seal goes at the end down there by the splines, where it's all nice and shiny so no need for sanding anything. If you Google "TJ shaft in YJ" you'll get tons of info.
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Unread 12-27-2011, 01:36 AM   #12
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And no, the ujoints are different from yj to tj/xj.
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Unread 12-27-2011, 02:56 AM   #13
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Quote:
Originally Posted by Anticanman View Post
And no, the ujoints are different from yj to tj/xj.
So should I just use that whole assembly? Just pop it in and reconnect the rotor / brakes?

& will I have a balance issue?

Last edited by idskot; 12-27-2011 at 03:15 AM..
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Unread 12-27-2011, 06:36 AM   #14
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Quote:
Originally Posted by toolegit86 View Post
i think Tjs are 30 spline. U can swap them in but need a locker or spiders with matching splines. Xj work. Look for the 270x ujoint axles 96 and up there the strongest oem.

They are 27 spline.
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Unread 12-27-2011, 09:28 AM   #15
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Quote:
Originally Posted by idskot View Post
So should I just use that whole assembly? Just pop it in and reconnect the rotor / brakes?

& will I have a balance issue?
No balance issue unless you're talking about your driveshaft, it may. Eed to be balanced. The whole setup is fine to just install but take the opportunity to replace the ujoints in the xj shafts with 760 series hardware. You'll thank yourself later even if it's because you have new joints.
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