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Condoms prevent minivans
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538 Posts
Discussion Starter #1
I have a 2002 Durango SLT+ with the corporate 9 1/4" rear and 8" front diffs. I have been looking online for limited slip diffs, and everything seems to be for 31-spline axles. I have heard that D's have 29-spline axles, also heard they have 31-spline axles...

Which is it? And if it's 29-spline axles, does anyone make a decent LSD for it?
 

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Outlaws Phone Warden
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12,864 Posts
As far as I know here's how the splines break down......

Pre 97 8 1/4 rear end has 27
Post 97 8 1/4 rear has 29
9 1/4 rear has 31....not sure on the years though.....
 

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No Boost? Why Drive?
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1,766 Posts
As far as I know here's how the splines break down......

Pre 97 8 1/4 rear end has 27
Post 97 8 1/4 rear has 29
9 1/4 rear has 31....not sure on the years though.....
Correct about the 8.25s. AFAIK all 9.25s are 31 spline.
 

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Condoms prevent minivans
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538 Posts
Discussion Starter #5
Thanks guys
 

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Chevy SUCKS!!!!!!!
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1,685 Posts
29, 97 and up are 29 and 96 and older are 27. That's a more specific way to word it.
 

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How do you guys know about the spline counts where did you see that. I got a 99 with a 8.25 and I'm looking to buying a locker or posi but idk if I want to rebuild the 8 or buy a 9 then rebuild that
 
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