What is the difference with tj yj jeeps?

Answer 1

Here is the skinny of the Jeep Wrangler The YJHistory The YJ model was the first jeep sold with the name of Wrangler, manufactured from '87-'92 in Brampton, Ontario, Canada, from '92-'95 they were prduced in the Toledo, Ohio jeep plant. The YJ uses a 2.5L I-4 AMC 150 or optional 4.2L 258 I-6 until 1991. That year, a fuel injected 4.0L I-6 AMC 242 variant replaced the 4.2L I-6. The 2.5L I-4 got multipoint injection the same year, increasing hp to 123 net. An I-4 equipped Wrangler can do appr. 14 secs 0-60 mph, top speed appr. 90 mph, with average MPG 20. I-6 with injection does 0-60 in 10 secs, top speed appr. 105 mph. The numbers vary a lot based on the rear end ratios. Axle ratios effect all performance and mileage figures. Manual trans: * 4.2L 258 I-6 and 4.0L I-6's: From 1987-March 9,1989, the standard manual transmission is the light-duty Peugeot BA-10/5 5 speed. On March 10,1989 the assembly line was changed and through the end of the YJ production run, 6-cylinder models received the stronger Aisin-Warner AX-15, 5 speed. * 2.5L I-4's: For all years, the only manual transmission is the Aisin-Warner AX-5, 5 speed. * ** Note: In 1994, the slave cylinder on manual transmissions was moved outside of the transmissions bellhousing to allow for easier replacement. Automatic trans: * 4.2L 258 I-6 and 4.0L I-6's: For all years, the Auto trans is the TF 999 3-speed transmission. * 2.5L I-4's: For '94-'95 models, the only automatic transmission offered was the Chrysler TorqueFlite 904 3-speed transmission. Prior to 1994, 4-cylinder models were manual only. Transfer Case: * A limited number of early 1987 model year YJ's were equipped with the NP207 transfer case * All later YJ models come with the NP231 transfer case. Axles Axles in the YJ included a Dana 35 non clip rear axle from 1987 to ~1990 then a c-clip version until the end of production, there was also a Dana 44 available on a limited number of Canadian YJ's. A limited slip differential was available for the D35.Drum brakes were standard on all rear axles. The front axle used was a Dana 30 high pinion/reverse rotation axle. This is a full floating unit. Disk brakes were standard on the front of all YJs. Gear ratios ranged from 3.07 to 4.10. Manual transmission axle ratios are from 4.11:1 to 3.73:1, I-6 equipped have 3.55 to 3.07:1. The front axle contains a vacuum motor actuated midshaft axle disconnect on the passenger side of the differential. An aluminum fork moves a splined female ring onto the splined male axle, locking the shaft into place. The weaker aluminum fork can be replaced with a much stronger exact specification cast iron version which was cast for the Dodge Dakota. Body 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. A center high-mounted third brake light was standard(?) in 1994. Starting in 1995 the "tub" or body was galvanized to protect against corrosion. One of the common perks about the '92 - '95 roll bar is that it can be swapped into an '87- '91 YJ with little to no effort. Some have had to elongate a few bolt holes on the floor mounts but other than that it is a "bolt in" job. Specifications Overall length 153" Wheelbase 93.4" Overall width 66" Ride Height 72" Fuel Capacity 15.5 US Gallons, 20 Gal. Optional in '91-'95s Axle ratio 4.11:1 - 3.07:1 Curb Weight(w4.2) 3,028 lbs The TJ History Produced from '97-'06 The YJ Wrangler gave way to the TJ for the 1997 model year. Some updated features include: Coil-spring suspension (based on that of the Jeep Grand Cherokee) providing better ride and handling, and a return to the CJ's iconic round headlamps. The engine is the same 4.0L I-6 AMC Straight-6 used in the Cherokee and Grand Cherokee. A 2.5L I-4 AMC 150 Inline-4 motor was available on entry-level models until 2003 when the 2.4L DOHC Neon 4-cylinder engine replaced it. This model of the Jeep was the first Wrangler to have airbags. The TJ's coil-springs were questioned upon it's introduction. Other changes included the 1999 model had the addition of a larger 19 gallon fuel tank (which became standard), child seat tethers and sound system improvements in 2000, and a new console in 2001. Also, for the 2000 model year the AX-15 transmission was replaced with the NV3550. Despite the 1997 model year debut, it was actually available starting in the spring of 1996.

Rear end gear ratio varied depending on motor size and trans type: 4.0L I-6/Auto = 3.07:1 gear ratio also optional 3:73:1 gear ratio 4.0L I-6/Manual = 3.07:1, 3.55:1, or 3.73:1 gear ratio 2.5L I-4 or 2.4L I-4/Auto = 3.73:1 gear ratio 2.5L I-4 or 2.4L I-4/Manual = 4.11:1 gear ratio Engines Engine Applications Years Engines 1997 - 2002 4 cylinder: 2.5L I-4 Inline 2003 - 2006 4 cylinder: 2.4L I-4 Inline 1997 - 2006 6 cylinder: 4.0L I-6 Inline Transmissions AX-5 5 Spd Manual 4cyl Motor 1989-2001

AX-15 5 Spd Manual 1990-1999

32RH 3 Spd Auto 1992-2002

42RLE 4 Spd Auto 2003-2006

NV3550 5 Spd Manual 2000-2004

NVG1500 5 Spd Manual 2003-2004 "SE" Wrangler Only

NSG370 6 Spd Manual 2005-2006 Transfer Cases Transfer Case Applications Year Trim Transfer Case 1997 + SE NP231, 2.72:1 Low Range 2002 + X NP231, 2.72:1 Low Range 1997 + Sport NP231, 2.72:1 Low Range 1997 + Sahara NP231, 2.72:1 Low Range All Rubicon NP241OR, 4.0:1 Low Range