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Old 02-29-2012, 11:54 AM   #1
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What kind of differential is on my 02 sport?

I've got an 02 sport and i was just wondering what kind of differential is on the front/rear. is it open or locking or what? i've looked on the internet but no help there, so i thought i would bring it up with my TJ friends.

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Old 02-29-2012, 12:01 PM   #2
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The front is most likely an open D30. As for the rear, if it's an oval shape it's a D35, if it looks like an apple on it's side, you got lucky and it's a D44. The rear is a limited slip diff.

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Old 02-29-2012, 12:03 PM   #3
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The rear is a limited slip diff.
Maybe. In early TJs that came with a Dana 44, they came with the Tracloc limited slip differential but they were only optional on the Dana 35. After that, the limited slip became optional for both the Dana 35 and Dana 44.
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Old 02-29-2012, 01:00 PM   #4
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So the front is a Dana 30. Meaning if I get in deep mud only one wheel will be spinning in the front right? And the back I'm not sure about, I haven't had the chance to look yet but I might post a pic later for you guys to decide off looks of what it is. Thanks guys! I just bought it a little over a week ago. And I'm completely new to jeeps. I used to have a 2000 trans am but came to the dark side
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Old 02-29-2012, 01:13 PM   #5
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here's a visual for you

there maybe a metal tag, it will be attached between two bolts holding the cover on. might be hard to read but will tell you your ratio (as long as no one has swapped from factory) but hopefully they removed it or changed it if that was the case.

if factory, I think it will have a code to tell you if it has a limited slip
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Old 02-29-2012, 01:39 PM   #6
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So the front is a Dana 30. Meaning if I get in deep mud only one wheel will be spinning in the front right?
Differentials always spin both tires. In uneven traction conditions, one side or the other may not spin while the other side spins wildly. Neither side will tend to spin more than the other. Differentials always split the torque 50:50 to both sides. Always. That doesn't necessarily mean both sides spin in all conditions however. Read this article I wrote on the subject years ago. Sorry it's a bit wordy but... 4x4 & Torque answers -
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Old 02-29-2012, 01:54 PM   #7
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I've looked on the internet but no help there, so i thought i would bring it up with my TJ friends.
Look at the top of the TJ section for the Skicky's. Look at the one labeled "TJ/LJ FAQ!/ axles/trans, alignment - Newbies, this one's for you!" click it. Find the link labeled "TJ/LJ axle Identification!!!" all the info is in there.

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