3.07 with a 3 spd auto to 4.11 with the 3 spd auto - JeepForum.com
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Unread 04-10-2013, 09:40 AM   #1
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1997 TJ Wrangler 
Join Date: Jul 2012
Location: Glastonbury, CT
Posts: 6
3.07 with a 3 spd auto to 4.11 with the 3 spd auto

I picked up these 4.11 axles for my wrangler that has 3.07 but i have a 3 spd auto. Will i beable to drive this on the highway after the swap??? I see these kinda of questions but with the 4 spd auto. Any input would be great

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Unread 04-11-2013, 10:17 PM   #2
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1990 YJ Wrangler 
Join Date: Jun 2008
Location: Elizabeth Lake, CA
Posts: 3,756
I currently regeared my TJ from 3.07s to 4.10s, still on 31s and have the 3 spd auto. Going 70 I'm at 3100 rpm. It's a little high but will be better when I go to 33s. Gas mileage hasn't suffered too much, went from 15 to 14 mpg.

But, it's way too much fun around town. The dang thing runs like a scalded dog.
"Anything to do with the land, I love."
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Unread 04-12-2013, 08:09 PM   #3
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1998 TJ Wrangler 
Join Date: Apr 2004
Location: , Southeast MI
Posts: 24,399
What tire size?

That is the last import part of the equation.
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