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Unread 03-16-2013, 02:46 PM   #1
Tarpo
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Odd gear ratio

My dana 35 blew up, so I'm swapping for an 8.8. I was trying to figure what gears were in the jeep so I can match the front axle..
I count 37 teeth on the gear and 9 on the pinion, unless my math is bad I have 4.11 gears. I didn't know they put 4.11 gears in these jeeps?

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Unread 03-16-2013, 02:49 PM   #2
pete1991YJ
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Yes, all the 4-cylinder models had it.
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Unread 03-16-2013, 02:59 PM   #3
Tarpo
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Can you run 4.10 in the rear with 4.11 in the front? Or are they so close it doesn't matter?
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Unread 03-16-2013, 03:09 PM   #4
pete1991YJ
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Can you run 4.10 in the rear with 4.11 in the front? Or are they so close it doesn't matter?

Actually the factory sets it up that way. Its close enough to not matter. Most if not all of the manufacturers do it.
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Unread 03-16-2013, 03:31 PM   #5
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Awesome. Thanks.
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Unread 03-18-2013, 12:28 PM   #6
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maybe

Quote:
Originally Posted by pete1991YJ View Post
Yes, all the 4-cylinder models had it.
maybe the 5speeds had 4.11's but my auto has 3.73's.
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Unread 03-18-2013, 03:21 PM   #7
ratmonkey
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Quote:
Originally Posted by CRASHNDENT View Post
maybe the 5speeds had 4.11's but my auto has 3.73's.
yes, 4cyl 5speed jeeps got 4.10/4.11 gears across all the models. the later tj 2.4l actually could be had with 4.56 gears.
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Unread 03-18-2013, 03:24 PM   #8
pete1991YJ
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maybe the 5speeds had 4.11's but my auto has 3.73's.
Yep, the autos did. But the auto with the 4.2 was good for 3.07's, and I *think* the 4.0 auto had 3.53's. Don't quote me on that tho, not sure. I do know for a fact that the 5-speed 4-cyls had 4.10's tho.
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Unread 03-18-2013, 03:26 PM   #9
sxysouthtx
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I'm pretty sure I have 3.07s in my 4.0L auto. I wish I had at least 4.10's. But every person in this area selling a D35 with 4.10s think they are worth the price of gold. I've seen them as high as 350$.
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Unread 03-18-2013, 03:56 PM   #10
tom_sprecher
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The high price of D35 4.10's convinced me to simply re-gear the damn thing and be assured what it's condition is for $100 less.
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