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XJ and TJ axles? #1006531 08/19/10 06:59 AM
Joined: Jan 2005
Posts: 214
Exar Offline OP
Quick question for anyone out there are xj and tj front axles interchangeable??

90 YJ
Rubicon Express Extreme Duty 4.5 lift
Ford 8.8
33" Super Swampers
Newly added 2000 WJ
From the Off-Road World
Re: XJ and TJ axles? [Re: Exar] #1006532 08/19/10 04:38 PM
Joined: Feb 2000
Posts: 6,247
4x4Wire Offline
Trail Leader
The quick answer is yes and no...

XJ has front coil and rear leaf. TJ is front and rear coil.

Depending on year, the front D30 is interchangeable with slight modifications. Biggest is dealing with the Central Axle Disconnect employed in many D30 (XJ and YJ) axles.

The rear axle needs conversion from leaf spring to coil spring along with track bar mods.

So, yes if you are prepared to do some custom mod work; otherwise, no.

John Stewart
Editor - 4x4Wire.com
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Re: XJ and TJ axles? [Re: Exar] #1006533 08/21/10 04:52 AM
Joined: May 2009
Posts: 306
MartySoCal Offline
XJ, TJ and ZJ FRONT axles are basically the same.

YJ front axles use leaf springs and won't work.

XJ's may or may not have the disconnect, it depends on the t-case originally fitted. Selectrac or AWD (228, 229, 242) will not have a disconnect, Command trac (207 or 231 t-case)will.

Early XJ's used a reverse rotation ring and pinion.

Late XJ's used a low pinion diff like the TJ.

In about 1996, the half shaft u-joints were upgraded to 297's, in place of the smaller 260s

ZJ diffs are low pinion, no disconnect, and may have CV joints or regular spicer u-joints, depending on if it had full time 4wd or not.

Early XJ's with AWD have CV half shafts, too.

In around 1995, the Dana 30 went to a shorter pinion shaft in both the reverse rotation and normal rotation diffs.

A high pinion diff probably won't clear the stock exhaust pipe on a TJ.

The brake calipers and rotors changed in 1990/91 or there abouts.

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