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Unread 12-23-2011, 10:55 PM   #1
Yucca-man
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LJ Unlimited v. LJ Rubicon Unlimited

So for those of you who have seen my Rubi-clone rant thread (http://www.jeepforum.com/forum/f176/...lones-1303982/ ), I came to a realization - other than lockers in the front and rear 44s and the NP241OR t-case, is there really much advantage to the Rubicon? More importantly, is there enough to account for the $2,000 and more most buyers are asking for simply because of the "Rubicon" badging?


Not a Rubicon...which is okay considering how much chrome would have to be removed


Yes, I've read http://www.jeepforum.com/forum/f9/st...1/#post4118327

Selectable lockers front and rear - advantage Rubi.
D44 rear - Both have rear D44s, the LJ with a limited slip. Tie.
D44 front - not sure it's an advantage, as it shares multiple parts with the LP D30 anyhow. A high-pinion D30 out of a late-model XJ will be very similar strengthwise, with the added advantage of somewhere around an inch of ground clearance. Consider the fact that I have a '96 XJ (with the high-pinion D30 and larger u-joints) that I might not sell when I buy the LJ, and the low-pinion D44 really isn't as attractive. Advantage LJ.

T-case. This is the one point in which the LJ Rubi has the advantage, simply because 4:1 reduction beats 2.72:1 - without having to install anything. Advantage Rubi.

So what else am I missing that really stands out with the LJ Rubi over the LJ? Anything? Or am I better off to expand my search parameters to include all '05-06 LJs? I'm still strongly in favor of the 6-speed so '04 isn't really an option.

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Unread 12-23-2011, 11:27 PM   #2
Brainwashed2566
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You forgot all the really important stuff like hood stickers and fender flares and stuff.
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Unread 12-24-2011, 01:45 AM   #3
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There is more to the Rubicon than what you mentioned and no, I’m not going to list them. That kind of debate has been beat to death over the years since the Rubi was first introduced. Perhaps others will chime in and list what else the Rubies come with or you can listen to people like Brainwashed2566 and be brainwashed yourself with dumb statements like his.
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Unread 12-24-2011, 07:01 AM   #4
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Very stupid.

Keep the XJ.
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Unread 12-24-2011, 07:49 AM   #5
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The D44 rear is not a tie. Regular LJ has a clutch LSD which will need to be rebuilt every 50-100k miles. Rubi has a gear LSD which will not. I'm supremely happy with my Rubi, but if your build plans include say D60s, an Atlas transfer case and ARB lockers, there'd be no reason for you to get one. My plans don't require any of that, so it was perfect for me.
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Unread 12-24-2011, 08:13 AM   #6
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Quote:
Originally Posted by commodore_dude View Post
The D44 rear is not a tie. Regular LJ has a clutch LSD which will need to be rebuilt every 50-100k miles. Rubi has a gear LSD which will not. I'm supremely happy with my Rubi, but if your build plans include say D60s, an Atlas transfer case and ARB lockers, there'd be no reason for you to get one. My plans don't require any of that, so it was perfect for me.
Why, you can make more money selling idiots your rubi parts than a LP30 and 231.
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Unread 12-24-2011, 08:38 AM   #7
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Also the D44 front allows you to gear lower then 4.88.
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Unread 12-24-2011, 08:41 AM   #8
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That extra $2000 is cheap compared to what it would cost to turn a regular LJ into a Rubi.

Lockers $1600+
Gears and install kits $500+
4:1 kit $1100+
Labor $2000+

Plus with the 44s you can gear lower than 4.88.
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Unread 12-24-2011, 01:42 PM   #9
Yucca-man
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Quote:
Originally Posted by commodore_dude View Post
The D44 rear is not a tie. Regular LJ has a clutch LSD which will need to be rebuilt every 50-100k miles. Rubi has a gear LSD which will not. I'm supremely happy with my Rubi, but if your build plans include say D60s, an Atlas transfer case and ARB lockers, there'd be no reason for you to get one. My plans don't require any of that, so it was perfect for me.
Fair enough, I realized I didn't lay out my plans. I'm looking at going about 3" lift with 33x10.50s.

For that, 44s or an HP30 and a rear 44 will be perfect. Even with the 4.10s in the Rubi, that tire selection may still call for a regear, so the savings on a regear isn't there.

Dunno...just thinking "out loud" here and trying to decide which direction I'm headed. And no, keeping the 16-year old XJ isn't going to happen.
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Unread 12-24-2011, 01:47 PM   #10
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Your plans are about the same as mine (1" BL/MML, 2.5" lift, 33s). So the axles, lockers and transfer case are all probably things you'd keep, and that's well worth $2,000. With the 6-speed you'd be looking at regearing to 4.56 most likely rather than 4.88 like us auto folks have to.
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Unread 12-24-2011, 02:01 PM   #11
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4.88 auto or 4.56 6-speed on 33s? That's the thing I haven't quite pinned down. I know on the XJ with the AW-4 auto, 4.56 is an excellent match for 33s. Wasn't sure about the 6-speed though, despite dozens of threads giving ranges anywhere from about 4.10 to 4.88 or higher...
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Unread 12-24-2011, 02:26 PM   #12
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Quote:
Originally Posted by Yucca-man View Post
4.88 auto or 4.56 6-speed on 33s? That's the thing I haven't quite pinned down. I know on the XJ with the AW-4 auto, 4.56 is an excellent match for 33s. Wasn't sure about the 6-speed though, despite dozens of threads giving ranges anywhere from about 4.10 to 4.88 or higher...
The NSG370 is a pretty forgiving transmission. The 4.10's in the Rubi are a resonably good match for 33's. I wouldn't spend the money regearing a Rubi for 33's with the 6-speed. Gearing to 4.56 is a better match for 35" rubber.
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Unread 12-24-2011, 02:33 PM   #13
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To each his own, But to me the Tcase and the 5.13 gear option is enough for me to buy a rubi vs a cobble clone. If your going to build toward it, Why not start out with the vast majority of the expensive parts and fine tune the rest. Good luck either way
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Unread 12-24-2011, 05:16 PM   #14
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Quote:
Originally Posted by Yucca-man View Post
4.88 auto or 4.56 6-speed on 33s? That's the thing I haven't quite pinned down. I know on the XJ with the AW-4 auto, 4.56 is an excellent match for 33s. Wasn't sure about the 6-speed though, despite dozens of threads giving ranges anywhere from about 4.10 to 4.88 or higher...
My wifes TJ is geared to 4.56 with 33's and the NSG-370. I would say while it is a nice peppy combo and feels great offroad 4.10's actually would have been a better combo with as much street driving as she does. She barely uses 1st gear on the road.
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Originally Posted by TheBoogieman View Post
Jeepinmichguy is a jerk.
Quote:
Originally Posted by mrblaine View Post
How about this, if you had the Jeep Spirit, you wouldn't abuse the rest of us trying to enjoy a nice day out wheeling by bringing your brokeass broken down junkyard crap out to play where it can't handle it?
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you all have nice rigs, stop being f****** a**holes.
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Unread 12-25-2011, 08:16 AM   #15
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Originally Posted by jeepinmichguy_ View Post
My wifes TJ is geared to 4.56 with 33's and the NSG-370. I would say while it is a nice peppy combo and feels great offroad 4.10's actually would have been a better combo with as much street driving as she does. She barely uses 1st gear on the road.
I never use 1st gear on road, and I have the stock 31 inch rubber!
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