Will a differnece be noticed from 3.07 gears and 33" tires to 3.73 gears - JeepForum.com
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Unread 08-26-2005, 03:53 AM   #1
chaznad
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Will a differnece be noticed from 3.07 gears and 33" tires to 3.73 gears

the whole time i thought i had 3.73 gears until the other day i counted my DS turns and realized i have 3.07 gears,, i was always wondering why the damn thing barely moved

anyways someone local has a complete D30 and D35 he wants to rid of for 200 dollars that have 3.73 gears ,,its a daily driver and im always driving in the city and highway, as good of a deal it sounds to me i wanna know if ill notice an improvement

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Unread 08-26-2005, 03:55 AM   #2
TJ on the Rocks
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Do you have a 35 in the rear now ?
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Unread 08-26-2005, 03:57 AM   #3
chaznad
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yup............
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Unread 08-26-2005, 05:07 AM   #4
johnWJ
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i have 3.73s in my jeep now. compared to my old jeep with 3.07s, it is a world of difference
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Unread 08-26-2005, 05:37 AM   #5
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I just took a trip to the mountains in NC from the Florida flatlands with the 3.73 and 33's.

Overall, I was fairly pleased with the performance. In Florida, there seems to be only a slight loss of power in accelerating to and maintaining highway speeds.

In the mountains, there was the expected loss of power and required down-shifting. In fact, just maintaining highways speeds up gradient was much more of a challenge.

I couldn't imagine doing it with the 3.07.

I think you will notice a significant difference.

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Unread 08-26-2005, 06:22 AM   #6
Rusty the Scoob
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You will notice a large difference... 3.07 to 3.73 is a 20% difference. If you have an auto without overdrive, it's pretty much ideal with 33s.

Well worth $200, I just paid $200 for a D30 housing built with gears (also came with an R&P w/carrier for the 44), and considered it a bargain...
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Unread 08-26-2005, 06:27 AM   #7
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Is it possible to find out what you have without opening the casing?
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Unread 08-26-2005, 07:32 AM   #8
TJ on the Rocks
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Quote:
Is it possible to find out what you have without opening the casing?
You mean what ratio ?
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Unread 08-26-2005, 10:38 AM   #9
Jerry Bransford
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Quote:
Originally Posted by kappaknight
Is it possible to find out what you have without opening the casing?
There is a tag bolted onto both axle differential covers that has the ratio embossed into it.
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Unread 08-26-2005, 10:54 AM   #10
Dogman
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I would do that swap right now if I could find that kind of deal, and I'm only running 31s. Like mentioned, there is a big difference between 3.07 and 3.73.
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