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Would a 31 spline stardard rotation 9" rear axle be strong enough for hard core wheeln. I have found one for my TJ that would bolt right in. Just curious ass to it's strentgh

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depends on the tires you wanna run. and the gearing you have...for the most part it should be plenty stout..if its not get some dutchman shafts....point is buy it.

on a side not i have a friend w/ a 28 spline 9" w/ mini spool runnin 4.56's and q78's and hes only broken 1 shaft.
 

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definatly a stout unit, not quit a dana 60 but close. If you get it and start breaking axle shafts there are tons of upgrades out there so it can be upgraded to handle whatever you got.
 

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I run the 31 spline with a full spool 4:56's, 38.5 SX's on the street and on the Con all the time. I love it. No problem here. My buddy has a 28 spline 4:11 detroit and 36 SX's He has had his setup on the con for at least 4 years. Only had to replace both axles due to wheel bearing failure (early small bearing housing <IMG SRC="smilies/puke.gif" border="0"> )

If you can handle the low pinion then do it. It worked fine on my YJ.
 

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It would be a good choice and if need be you can put in 35 spline stuff.
 

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bajg: have you ever had a problem with the hi-9? Lots of people say they're weak as hell. I run 38's on mine and have never had a problem. I don't understand where people get off saying they're weak when nobody I've talked to has broken one or seen it done?! I have 4.1's and 35 spline shafts. It laughs. <IMG SRC="smilies/fj.gif" border="0"> <IMG SRC="smilies/usa.gif" border="0">
 

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31 spline axles are a little stronger than 30 spline axles <IMG SRC="smilies/thefinger.gif" border="0">


you guys running big meats on your high 9.....LOL your day is coming. lets just say i have never seen one NOT fail. i know 2 guys with them and the have both broken a ring gear. even currie will tell ya no to run anything more than a 35"
 

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I just finished the conversion of a 9" with disc brakes, 31 spline dutchman axles, 4.86 and a locker. I love it. Many poeple I know have no problems with these. Ya anybody can break them. Everything is bound to break sometime. But this is a tough as hell rear-end. See a post I put up a couple of weeks ago about the diffs' between 9", 60, 70 and 44. Good info in it.

Buy it.

BlueYJ <IMG SRC="smilies/glasses.gif" border="0">
 
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