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Unread 04-24-2012, 12:15 AM   #1
Terry777
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1997 XJ Cherokee 
 
Join Date: Oct 2010
Location: Coquitlam, British Columbia
Posts: 116
Question for 8.25 29 spline with locker

Could use more imput on my 8.25 29 spline, I now it can handle 35 inch tires & I know a guy who ran 35X14.5X15 super swamper thornbirds on a 27 spline and have no issues, with that being said he is not retarded and knows how to drive.

Ok so my question is if I wanted to put in a ARB air locker in would the 8.25 ,29 spline be able to handle 35 inch tires, say no wider than 12.5 & if not how big. This is considering I`m not rock crawling and stomping the skinny pedal.

I have a Blue torch heavy duty diff cover on it now so less flexing of the housing or so I`ve been told.

Thank you in advance for your advise I know this is the site for getting to the bottom of things

Looking for advise from a diff guy or engineer type for me to make a confident decision

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Unread 04-24-2012, 12:23 AM   #2
egodfrey
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1998 XJ Cherokee 
 
Join Date: Jul 2009
Location: Whitney Point, NY
Posts: 3,184
Im not an engineering major, but the 29 spline 8.25 will handle the 35's in my opinion especially with a light foot. You can get aftermarket shafts for fairly cheap as well. And the Arb is a strong full case locker. Ericsxj ran (maybe still does) 35's on his 29 spline 8.25 for quite a while up and down the rubicon trail and had good luck with it.
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Unread 04-24-2012, 10:55 AM   #3
donthelegend
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1999 XJ Cherokee 
 
Join Date: Apr 2010
Location: STL, MO
Posts: 931
The 29 spline 8.25 is generally considered capable of handling 35s, especially with a full case locker, heavy duty diff cover, etc. After market shafts may also be a good idea if you want a higher margin of safety, but there are plenty of people wheeling 35s on stock shafts.
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