Which 4.56 gears should I buy?
Senior Member
Joined: May 2014
Posts: 672
Likes: 5
From: Colorado
Year: 2001, 1997
Model: Cherokee
Engine: 4.0L
Folks have converted a 8.25 to have ABS but custom parts are needed.
In your case I'd stay with the D35. Consider changing to a different carrier w/ locker if you're concerned about durability. D35's usually die when the spider/side gears come apart inside the carrier and it can happen going down the highway on a lane change. But lots of TJ's are out there with D35's and they didn't all blow up. My D35 has 340,000 on it and so far only gear oil changes.
With CA emissions (minicats) the LP30 up front is needed to clear the minicats unless a lift is installed.
Senior Member
Joined: Nov 2011
Posts: 596
Likes: 7
From: Tallahassee, FL
Year: 1998
Model: Cherokee
Engine: 4.0
I too would swap out the LP30 and the 35 for an HP30 and 8.25 29spline axles, I would much rather have Disc brakes (ZJ upgrade) vs. ABS, and eventually you will want to go bigger tires, so you might as well do the right axles now instead of investing money in junk axles - if anything else for Resale Value. Get the axles, have them all done, then swap them one weekend.... Sell the 35, and either rob the axle shafts from the LP for backups, or sell it.
Thread Starter
Seasoned Member
Joined: Jan 2009
Posts: 454
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From: Middle Tennessee
Year: 2001
Model: Cherokee
Engine: 4.0L I6
Yeah I have been strategic about my mods and trying to do the right one, rather than the cheap or convenient one. I'll have to check around and see if I can find one then.
CF Veteran
Joined: Oct 2013
Posts: 5,924
Likes: 203
From: Greenville, SC
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
go to the junkyard and pull both axles out of a jeep and get them both geared and swap them in. Get a hp Dana 30 and a 97+ Chrysler 8.25 for the rear and get the gears done, add disc brakes, and swap in. That's what I would do.
Thread Starter
Seasoned Member
Joined: Jan 2009
Posts: 454
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From: Middle Tennessee
Year: 2001
Model: Cherokee
Engine: 4.0L I6
CF Veteran
Joined: Jul 2013
Posts: 7,554
Likes: 17
From: Monett, MO.
Year: 1999
Model: Cherokee
Engine: 4.0
Get a buddy to help you to do the work you buy the adult beverage of choice and feed him I bet you can have it done in a weekend if both differentials are done beforehand. You can take your time on those and do them right doing the gears, lockers and disc brakes.
Senior Member
Joined: May 2014
Posts: 672
Likes: 5
From: Colorado
Year: 2001, 1997
Model: Cherokee
Engine: 4.0L
BTW, for those who suggested swapping a HP30, check this out:
https://www.cherokeeforum.com/f67/hp...175937/index2/
Cases like this are why I think its better for the later models to stay with the LP axle.
https://www.cherokeeforum.com/f67/hp...175937/index2/
Cases like this are why I think its better for the later models to stay with the LP axle.
CF Veteran
Joined: Oct 2013
Posts: 5,924
Likes: 203
From: Greenville, SC
Year: 1999
Model: Cherokee(XJ)
Engine: 4.0
BTW, for those who suggested swapping a HP30, check this out: https://www.cherokeeforum.com/f67/hp...175937/index2/ Cases like this are why I think its better for the later models to stay with the LP axle.
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