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Unread 04-15-2015, 05:53 AM   #1
JeepingNet
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Automatic Rubicon - Trail-ability in 4-low

I have an concern/question.. I'm looking for my next project Jeep and have found a 2005 Rubicon Tj Automatic that might fit our build.

I had a 2005 Rubicon 6 Speed and often on the trail I'd be in 4-low - 3rd gear for the easier sections. I loved just setting the gear and not hitting the gas just let the Jeep do its thing. That got me thinking how well does the rubicon auto crawl in 4-low 2nd gear would I find it too slow? Are you always on the gas?

Any rubicon automatic owners find this a problem?

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Unread 04-15-2015, 06:48 AM   #2
ksk1480
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I haven't found it a problem as of yet, however I am planning on a re-gear here soon to 5.13's.
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Unread 04-15-2015, 06:54 AM   #3
LJ Dave
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I rock crawl on mountain trails in Colorado with mine all the time and it works great.
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Unread 04-15-2015, 07:22 AM   #4
wilson1010
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I find the automatic far superior for crawling in all models although I don't crawl my automatic Rubicon much. The only issue for me is that the automatic transmission does not really like to be under water and, durability is an issue. As for the technique, I think the automatic is always superior unless one has installed hand controls.
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Unread 04-15-2015, 07:30 AM   #5
Trons
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I have the 5speed, and haven't done much crawling yet (too much work to be wheeling since I got it), but part of me wished I had held out for an automatic. I really wanted an auto, but when this rubicon came along for the price it did, I felt I couldn't pass it up "Hoping" something better came along.
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Unread 04-15-2015, 08:04 AM   #6
mrblaine
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Quote:
Originally Posted by JeepingNet View Post
I loved just setting the gear and not hitting the gas just let the Jeep do its thing.
Are you a farmer up there in Canadia?
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Unread 04-15-2015, 08:31 AM   #7
pwmac
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The best thing one can do if you have a manual tans is convert to an automatic. Of course its much less expensive to buy an auto in the first place. You should hear the raves from guys that did the conversion. They are able to do obstacles with the auto that they could not do with the stick. A 4:1 low is the way to overcome the lack of engine braking with the auto. Otherwise a brake upgrade is advisable.
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Unread 04-15-2015, 09:18 AM   #8
JeepingNet
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Quote:
Originally Posted by mrblaine View Post
Are you a farmer up there in Canadia?
Tree farmer.. does that count?

With snow wheeling often the best approach is let the Jeep do the work. Set the gear and get off the gas. In the summer we have 1-2 hours of old logging roads to get into the trails.

From this weekend: http://www.youtube.com/watch?v=GbugDd4wU0A


Everyone thanks for the replies.. Water does concern me.. In a few weeks from now we'll have a lot of water on the trails. I might pass on the Rubicon and just go fulltime lockers. Then eventually do a 300 swap or atlas.
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Unread 04-17-2015, 07:01 AM   #9
Airstreamer67
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The auto tranny should have a vent tube to prevent water from getting inside, just like the standard. However, the standard has a clutch, which can be damaged by water and silt. So, is not the auto in water at least as good as a standard, without the clutch exposure?
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Unread 04-17-2015, 07:08 AM   #10
Ironhead
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Quote:
Originally Posted by Airstreamer67 View Post
The auto tranny should have a vent tube to prevent water from getting inside, just like the standard. However, the standard has a clutch, which can be damaged by water and silt. So, is not the auto in water at least as good as a standard, without the clutch exposure?
no problems with the auto in water as long as the breather tube and dipstick tube dont get completely submerged. that is as long as the seals are good
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Unread 04-17-2015, 07:58 AM   #11
WhiteMtnJeep
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The breather vent for the auto trans is tied to the dipstick tube about and inch below the top, so you should be good there, unless you plan on submarining it. Lol

The vent for the T-Case, however, may be laying on top of the transmission somewhere. That's where I found mine and a few others. Check it. I used a double hose barb, two hose clamps, and a piece of fuel grade hose and extended it so it is up next to the trans vent.

I never understood why T-Case vents were so low when everything else was so high.
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Unread 04-17-2015, 05:15 PM   #12
JeepingNet
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Went to look at the Jeep and it wasn't even a real rubicon.. Owner doesn't believe me but it has a dana 35, np231 and no lockers. I was still interested but not for the price she was asking.. couldn't get her to budge since she still thinks it is a Rubicon.

Has the rockers, hood sticker and rims..
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Unread 04-17-2015, 05:46 PM   #13
Ironhead
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Quote:
Originally Posted by JeepingNet View Post
Went to look at the Jeep and it wasn't even a real rubicon.. Owner doesn't believe me but it has a dana 35, np231 and no lockers. I was still interested but not for the price she was asking.. couldn't get her to budge since she still thinks it is a Rubicon.

Has the rockers, hood sticker and rims..
thats a shame, i wonder how much she got screwed out of
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