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PANDEMIC-USA 50" Double row LED LIGHT BAR!! These thiANOTHER Rockridge4wd Creation!! Spare Tire Carrier Delete The Jeep Forum Discount is ON!

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Unread 06-05-2015, 01:46 PM   #1
CRhodes
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JK questions

I've had several TJs and YJs in the past but am thinking of getting a JKU for a daily/toy. It's been 4 years since I've had something I really enjoy driving. I travel a lot for business and will put a fair amount of miles on it. Not necessarily looking to buy new (but the rumored diesel could change my mind) so I'm wanting to know what to look for and what to avoid. I'm very much a do it yourself person so I don't want one already modded. Any pointers would be very appreciated

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Unread 06-05-2015, 02:43 PM   #2
Butterbuddha
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Don't buy the early 07 with the Dana 35 rear end. Also, make sure its 4wd. Otherwise, I found the JKU to give the same feel behind the wheel as my 2 door, but with actual ROOM in the trunk area!
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Unread 06-05-2015, 03:06 PM   #3
Utah_Jay
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If it is a JKU it will not have a Dana 35, even in an early 07 so no worries there. I would recommend getting a '12 or newer if it is in your budget. Lots more horsepower and a better transmission. If you get an 07-11 be ready to re-gear it to make it more driveable. If you hold out for a rumored diesel (nobody knows if this will really happen) be prepared to spend $60k on a wrangler, just my guess that is what they will milk us for because it has a diesel in it.
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Unread 06-05-2015, 03:27 PM   #4
Butterbuddha
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A limited run of very early 07 JKUs did indeed have Dana 35 rear ends.

I agree with you about the 12s and up, might as well get the 3.6 to make life more enjoyable!
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Unread 06-05-2015, 03:43 PM   #5
Utah_Jay
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Quote:
Originally Posted by Butterbuddha View Post
A limited run of very early 07 JKUs did indeed have Dana 35 rear ends.

I agree with you about the 12s and up, might as well get the 3.6 to make life more enjoyable!
I could be mistaken but I believe the 35's only were put in the early JK's - I thought all JKU's had the 44
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Unread 06-05-2015, 04:18 PM   #6
Butterbuddha
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On second look I do believe you are correct! My mistake!
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Unread 06-05-2015, 05:35 PM   #7
nighowl2000
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if you are going to get 2007-2011, get the 6 spd standard with that 200 HP 3.8L V6

Check the manual to make sure the shiftier does not pop out of gear. Check the oil level of the 3.8L apparently that engine likes to eat up to 1 quart per 1000 miles/km.

The 4 spd auto tranny with the 3.8L did not come with a tranny cooler and is susceptible to over heating. Check the tranny fluid level and make sure the fluid is not burnt.

If you are going to get a 2012-2015, get the 5 speed automatic. Its the german 5 speed NAG1. Super smooth! Also check for brown sludge in the coolant bottle. Means they mixed coolant and the coolant system is probably plugged which means the heater core is plugged and will not produce heat (that would suck if you live in the north!). Check the battery and battery terminals as well. The 3.6L 3 computers are sensitive to bad batteries.
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Unread 06-05-2015, 05:43 PM   #8
ronjenx
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Quote:
Originally Posted by nighowl2000 View Post
The 4 spd auto tranny with the 3.8L did not come with a tranny cooler and is susceptible to over heating. Check the tranny fluid level and make sure the fluid is not burnt.
It did come with a transmission cooler. It's at the bottom of the A/C condenser, and not in the direct air flow through the grill.
An additional cooler is recommended, though.
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