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  #1  
Old 04-18-2010, 09:21 AM
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Default Whats the Difference?

Between a Jeep Wrangler TJ and a Jeep Wrangler YJ?

I've reaserched this and all I can seem to find between them is the round or square headlights..

Also what difference is there between the Rubicon and the Sport models?

Thanks
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Old 04-18-2010, 09:30 AM
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the rubicon has upgraded axles and i believe a 2inch factory lift over the standard and sport models. dana 44's compared to the sports standard dana30 front/dana 35 rear. minor other differeneces.


as for differences betweeen TJ and YJ there are MANY. the TJ is a much better base, although teh YJ is a major leap ahead of the earlier CJ's.
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Old 04-18-2010, 11:29 AM
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Is the TJ on coils and the YJ on leafs?
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Old 04-18-2010, 11:36 AM
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The rubie had the dana 44's, 410 gears, Elocks front and rear, 31" tires, and 4-1 tcase gears.

TJ has coil suspension front and rear, drive train is the same as a YJ. Tub is a little different plus you could get the unlimited (2 doors with a longer tub (scramber style)) I think the wheelbase was a little shorter then the YJ.

YJ has the leafs front and rear. Tub was pretty close to the old CJ7.
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Old 04-18-2010, 11:48 AM
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From Wiki


The Jeep YJ, sold as the Wrangler, replaced the much-loved but slower-selling Jeep CJ in 1987 and was built in Brampton, Ontario, Canada until the plant closed on April 23, 1992. Production was then moved to Toledo, Ohio using the same plant that produced the Willy Jeeps back in WWII. It was a new design with a wider wheelbase, slightly less ground clearance, and more comfort. The YJ also had a leaf spring suspension similar to that of the CJ, however, the springs were wider, and the YJs sported trackbars and swaybars for added handling. Despite the new grill, the body is very similar to the CJ7's, and it is interchangeable with some minor modifications. The YJ also was given a larger windshield over the CJ. The YJs are easily identifiable due to the rectangular headlights, disliked by some Jeep aficionados, and the fact that the wiper blades rest on the windshield giving this version a distinctive look. The blades rested on the windshield due to the now wider arc of the blades to clean the now larger windshield. These two changes were later removed when the TJ changes came about in 1996. 632,231 YJs were built through model year 1995, though YJs were still produced into mid '96 bringing the total production number to 685,071 units.

The YJ used a 2.5 L AMC 150 I4 or optional 4.2 L AMC 258 I6 until 1991. That year, a fuel injected 180 hp (134 kW) 4.0 L AMC 242 variant replaced the 112 hp (84 kW) 4.2 L 258 CID straight-6. The NP207 transfer case was used only in 1987 and replaced by the NP231

The roll cage was extended in 1992 to allow for rear shoulder belts, and anti-lock brakes were added as an option the next year. An automatic transmission option for 4-cylinder Wranglers came in 1994 along with a center high-mounted stop lamp.

In 1994, the slave cylinder on manual transmissions was moved outside of the transmission's bellhousing to allow for easier replacement, and in 1995 larger U-joints were used [front axle U-joints(297x) and rear pinion U-joint(1330)]. For the 1992 model year, the YJ switched over to an electronic speedometer outmoding the cable speedos on older YJs. 1995 was the only year to have a fully galvanized frame and body.

YJs produced in early 1996 were sold as 1995 model years, but featured a few new parts not seen on any earlier YJ. This included: the new TJ bumpstops on the hood (rubber boots vs the traditional U-bars), reinforced tailgate hinges, and it has been said that some even had rear TJ bumpers. Some lucky ones also got the newly tuned I6 that was tuned to run quieter in preparation for the TJ.

The YJ gave way to the TJ for the 1997 model year (note that there was no 1996 model year; the 1997 TJ was released in Spring 1996). This updated Wrangler featured a coil-spring suspension (based on that of the Jeep Grand Cherokee) for better ride and handling, and a return to the classic CJ's round headlamps. The engine is the same 4.0 L AMC 242 Straight-6 used in the Cherokee and Grand Cherokee. A 2.5 L AMC 150 Inline-4 motor was available on entry-level models until 2003 when the 2.4 L DOHC Neon 4-cylinder engine replaced it.

A right hand drive version of the TJ was available for export markets, and was also offered for sale to US rural route postal carriers. The version offered to US postal carriers was only available with an automatic transmission.
A modified 98 TJ offroading in Alaska

In 1999, the fuel tank became standard at 19 U.S. gallons (72 L; 16 imp gal) capacity. There were some changes that occurred between the 2002 and 2003 years that made some parts difficult to directly swap back and forth, but also made it easy to identify certain years. From 1997 to 2002, the side door mirrors were black metal framed mirrors; and from 2003 to 2006 they were plastic molded mirrors. The fit of hard and soft tops is slightly different, and the fabric and colors available changed from 2002 to 2003. In 2003, the 3-speed automatic transmission was replaced with a 4-speed automatic with overdrive. It has the standard option of turning off overdrive with a dash switch if desired. The radio bezels went from a rectangle in 2002 to a rounded edged rectangle in 2003, so swapping these also required the console to either be swapped out or modified. The sound bar inside was changed to sound pods. The interior seats also changed design from 2002 to 2003, going from a rounder model to one with a distinct separation between back and headrest areas.

The standard skid plate was also revised for 2003 to make room for the Rubicon's bigger NV241OR transfer case. The change from the 30/32RH to the 42RLE also gained an additional skid plate.

This version of the Wrangler is also notable for being the last production vehicle to use AMC-related parts. The AMC Straight-4 engine was retired after the 2002 model year, and both the AMC Straight-6 engine and the door handles (the latter of which first appeared on AMC vehicles in the late 1960's) were retired along with this generation in 2006. Like the YJ Wrangler, the TJ Wrangler used both the AMC passenger car door handles as well as the larger door handles off the AMC-built Jeep CJ for higher-end models.

The Wrangler Rubicon (named for the famed Rubicon Trail in the Sierra Nevada Mountains) was introduced in 2003. It featured front and rear Dana 44 axles with built-in air-actuated locking differentials, 4:1 low-range NV241OR transfer case, 4.10:1 differential gears, diamond plate rocker panels, 16-inch alloy wheels, and Goodyear MTR P245/75-R16 tires. 2003 to 2004 featured a standard NV3550 five-speed manual transmission, which changed in 2005 to the NSG370, a Mercedes-sourced six-speed. The optional 42RLE four-speed automatic transmission was available from 2003 to 2006.

A limited run of 1,001 Wrangler Rubicon "Tomb Raider" models were produced in 2003 to promote the Tomb Raider sequel, Lara Croft Tomb Raider: The Cradle of Life. Along with the standard Rubicon fare, it also included exterior features such as 16 inch Alcoa forged aluminum wheels, Tomb Raider badging, and Mopar accessories including a light bar, riveted fender flares, tubular grille guard, diamond-plated bumper guard, etc. Interior features included Dark Slate fabric seats with red accent stitching down the center, silver surround instrument panel bezel, red seat belts, and a Tomb Raider badge with serial number. To match the vehicle in the film, it was offered in Bright Silver.
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Old 04-18-2010, 04:14 PM
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To add to that, the new JK Rubicons have electronic locking diffs and electronic swaybar disconnects. I'm not sure about the body lift, but I know they come from the factory with bigger tires. You can check the Jeep website and do a trim-level comparison to see what exactly the differences are on the JKs. If you're looking to see what the TJ Rubicons had, you'll have to go for Wikipedia or some other online resource. Or just ask a TJ Rubi owner.
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Old 04-21-2010, 08:51 PM
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On the JK the X, and Rubi come with the same size tires. But the Rubi has BFG Mud Terrains and the X have crappy Goodyears. The base model X does have a smaller tire size. Thats not the OP original ? but I had to add that.
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Old 04-24-2010, 10:25 AM
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I think I get it now, thanks guys!
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Old 04-27-2010, 10:55 PM
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YJ owners have the unique ability to visually inspect their wipers at all times while driving too.
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Old 04-28-2010, 06:41 AM
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The biggest difference is the suspension for a short answer, YJ is on leafs and TJ's are on coils. The TJ is more or less a complete redesign, new chassis, suspension and body but still has the straight 6.
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