Announcement Announcement Module
Collapse
No announcement yet.
TJ FAQ's Page Title Module
Move Remove Collapse
X
Conversation Detail Module
Collapse
  • Filter
  • Time
  • Show
Clear All
new posts

  • TJ FAQ's

    OK, I have tried this in other sites, lets try to get something started here. Maybe make this a sticky?
    Have this as a post as a FAQ for TJ's (It's what I have, so if you want a YJ, start it also).

    Q: What is a TJ, YJ, or CJ?

    A: A TJ is a Wrangler with a model year of 1997+ and has round headlights and a coil suspension.
    A YJ is a Wrangler from 1987 to 1995 (there was no 1996 model, just a early '97 TJ) with square headlights and a leaf spring suspension.
    A CJ is any Short wheel base (SWB) Jeep with removable doors and top prior to that. They had round headlights and a leaf spring suspension. CJ's came in several models, the most common are CJ5, CJ7, and CJ8, but there are others.
    TJ's and YJ's are referred to as "Wranglers" (in the U.S.A., not Canada). TJ and YJ do not stand for anything, just a Jeep model designation. CJ does stand for Civilian Jeep.
    There are other differences, but this is the very short version.

    Q: What is the biggest tire I can put on a stock TJ?

    A: Well, depends. The largest tire with a guarantee not to cause problems is 30x9.5". This is the largest tire that came stock from Jeep (except for the '03 "Rubicon Edition", which has LT245/75R16 tires (translates to about 30.5x9.6")). 31x10.5" tires will fit on stock rims (either 7" steel or 8" alloy) but some people report rubbing on full turns. Adding 1 or 2 washers to the steering stops can fix this. Anything larger and you will need a lift to avoid clearance and rubbing problems.

    Q: My dome light stays on when I take my doors off. What do I do?

    A: Pull the # 4 fuse in the fuse panel behind the glove box. This will turn off the dome light with the doors off. Be advised, it will also turns off your headlight on reminder chime. You can still turn on the dome light with the dimmer control as before.

    Q: How do I get the stickers off of my sun visors?

    A: There are several answers to this. The fastest way does not remove them, just makes it so you don’t see it all the time. You remove the drivers’ side visor from the rod (no tools needed, it just slides off with a little effort) and the passenger side sun visor. Then place the drivers side visor on the pass. side and place the pass. side on the drivers’ side. This just puts the sticker facing up unless you are using the visor. Some have said they have stickers on both sides, so this won't work for you if that's the case.
    To remove, you have to determine if it a sticker or a silkscreen type.
    If it is just a sticker, use a hair drier to heat the sticker up and slowly peel the sticker off. It may leave a sticky residue, but that can bee cleaned with an adhesive remover or something like WD-40.
    If it is the silk-screened type, I can't really give a definite answer, I have not personally dealt with it. The idea though is to heat with a hair drier and just pick at it. Some have used acetone or nail polish remover with success, but I'm not sure of long-term effect on the plastic visors. Anyone with actual knowledge please post or let me know by PM.

    Q: My rearview mirror is to low, how do I move it higher?

    A: The easiest way to fix this it to just rotate the mirror 180 degrees, so that the bottom of the mirror is now the top. This places it right at the top of the window and does not change the view out the back. Or just wait till the mounting tab falls off and mount it higher.

    Q: My doors swing to far out when they open.

    A: Remove the strap that holds the door closed, twist it 2-3 times, re-attach, and see if that’s better. You can twist it quite a bit more if you need it to open even less.

    Q: What is a Budget Boost (aka BB and spacer lift)?

    A; A Budget Boost is an inexpensive (relatively speaking) way to lift a TJ. They are spacers, usually made of polyurethane, that are placed above the stock TJ springs to increase height. They range in size from 1/2 inch to 2 inches. They are many times offered in a kit that include shocks with them. I will not go into install directions, not enough space.

    Q: What is a Body Lift?

    A: A body lift is just what it says, it lifts the body of the Jeep off of the frame. They can be made of polyurethane, metal, and even fiberglass. They range in height from 1 inch up to 3 inches. It generally felt that anything over 1.5 inches is too high for a Jeep. Most will say no higher than 1 inch. Anything over 1.5 inches can cause binding problems with shifting linkage and also length of wires, fuel line, and large gap between frame and body. There is also somewhat of a safety issue if over 2 inches, the Jeep becomes somewhat top-heavy.

    Q: What is a Transfer Case (T-case)drop?

    A: A Transfer Case Drop does just what it says. It is done with either spacers or washers placed between the frame and Transfer Case Skidplate. It is used to reduce or stop vibrations from the rear driveshaft due to a suspension lift. It has the same effect as a MM lift by getting the driveshaft in line, but you loose some ground clearance when you do it. This is the cheapest way to stop driveshaft vibrations caused by lifting your Jeep.

    Q: What is a Motor Mount (MM) lift?

    A: A Motor Mount lift is used to lift the engine, usually 1"-2", that helps to reduce or stop vibrations in the driveshaft caused by a suspension lift. It replaces the stock motor mounts. It helps to get the angle of the rear driveshaft more in line from the transfer case to the rear axle. When You use a MM lift, you may need to move/ trim the radiator fan shroud. If you have a body lift and a MM lift, you should not have to do this, but may.

    Q: What is a SYE?

    A: A SYE is a Slip Yoke Eliminator. Stock TJ's come with a slip yoke in the end of the t-case for the driveshaft to slip into. With bigger lifts, usualy around 3" to 4", there is a bind on the rear driveshaft that can not be fixed with a MM lift or T-case drop. The SYE does 2 things, it replaces the end of the T-case with a fixed yoke (what the driveshaft attaches to) to allow for a longer driveshaft and allows the rear shaft to be removed without loosing fluid from the T-case. This is the most expensive way to fix driveshaft vibrations for 2 reasons, the cost of the SYE and new, longer driveshaft.

    Q: What axles do I have?

    A: If you have a Jeep manufactured in for the US or Canada, you will have a Dana 30 front axle. Your rear axle will be either a Dana 35c or a Dana 44. To tell them apart, the Dana 35c has an oval shaped differential housing with a rubber fill plug on the diff cover. The Dana 44 has a 10 sided differential housing with a metal threaded fill plug on the diff cover. If you have A 2003 Rubicon, you have Dana 44 axles front and rear. (I HOPE you knew this already). The Dana 44 is The stronger of the 2 rear axles, but is available only on the Sahara and Sport as an option. If serious off-roading or tires larger than 33", it is highly recomended to have the Dana 44 in the rear.

    Q: What is Limited Slip?

    A: Limited Slip (LS) is a traction aiding device that is in the rear differential. The stock LS is called Trac-Lock. It is an option only for the rear axle. What it does is keeps one wheel from spinning while the other sits still. It uses friction plates to reduce the difference between the 2 axle shafts, and does so automaticly. But as the name implies, there is still some slip that occures. It is considered better than an open differential (no traction assist device), but not as good as a locker.

    Q: What is a Locker?

    A: Like a Limited Slip, a locker is a traction assist device that is in the differential. There is no factory Locker available from Jeep except for the 2003 Rubicon. A locker "locks" both axle shafts together, forcing both wheels to spin at the same speed. There are 2 types of Lockers, automatic and manual.
    The automatic ones are just that, when wheel slip is noticed, it automaticly locks both wheels together and unlocks when not needed (as in turning).
    For manual lockers, these must be activated manualy by the driver when needed. There are 3 types, air pressure activated (ARB) cable activated (OX) and electric (Eaton). As of the time I am writing this, only the ARB and OX are available for the Dana 30 front and Dana 35c and 44 Rear.

    Q: What gears do I have in my differential's?

    A: Your differential should have a metal tag on the side where the cover bolts on. It will be printed on this. If the tag is missing, you can figure it out by lifting both rear wheels off the ground and placing it in neutral (and blocking the front wheels). Then rotate the wheels, watching the drive shaft. You need to count how many times the drive shaft spins in 1 rotation of the tire. The number of times the drive shaft spins will be your gear ratio. Stock ratios are 3.07, 3.55 (pre-'99), 3.73 ('99+) and 4.10. To help count the rotations, mark the tire, drive shaft and axle with chalk or tape for reference.

    Q: What transmission and transfer case do I have?

    A: If you have a 4 cylinder, 5 speed manual, you have an AX-5. If you have a 6 cylinder, 5 speed manual, 97-99 TJ's have the AX-15 transmission. From 2000+, you have a NV 3550. If a 3 speed auto (97-02, 4 and 6 cylinder) you have an 32RH. A 4 speed auto ('03+) is 42RLE (not 100% sure on this one). Your transfer case for all TJ's (except for the '03 Rubicon) is the NV 231 (2.72:1 low range). The '03 Rubicon is a NVG 2410R (4:1 low range).



    This is a start. Any more?
    Please post only questions and answers or PM me with them and I can add them to this list (that way, we only have 1 post to look at).
    If anyone finds any of these are incorrect, please PM me.
    If you just have a question not answered here, just ask in the forum. Thanks

    This is just a disclaimer, these are just things I have done to my Jeep or seen done to others. Your actual outcome may vary. All information is based on a stock, un-modified vehicle. The 2003 Rubicon has many differences than any other TJ, which I have tried to include, but may have missed. In other words, don't blame me if something goes wrong or is not correct.

  • #2
    TJ-FAQ

    TJ stands for "trail jeep"

    Comment


    • #3
      Re: TJ-FAQ

      Originally posted by TJ-RUBI
      TJ stands for "trail jeep"
      Or Tough Jeep or Trendy Jeep. You can make it stand for what you want, but it is just a model designation.

      Comment


      • #4
        Ok folks I have a question on this topic. I am getting ready to sell my Ford Ranger and get another Wrangler . I am looking at a TJ, new or used. I know what to look for, as far as mechanical stuff, to be aware of in buying used. Does anyone have any suggestions as to which year, if I get used, or what model if I get new. This Wrangler will be, for now, a daily driver. I will do some trails but nothing serious(yet). I want some comfort, good power, and a 5 speed. Suggestions on what to look for or what model to buy? Thanks, Matt

        Comment


        • #5
          YJ?

          what does yj stand for if tj stands for trail jeep?

          Comment


          • #6
            New Jeep

            Matt,

            I can't give any advice on a used TJ, but I can offer my opinion on a new one.

            I was debating over buying a '02 Sport or '02 X. I wanted a TJ for driving to and from work that I could hit the trail with on the weekend. I wanted something I could build up along the way. I couldn't find a Sport without alot of addon's like cruise control, upgraded sound, lockable storage, etc that I really didn't need. Plus the Sport adds around $1800 to the price tag and only includes standard above the X package: tow hooks, fog lights, tilt steering, bigger floor console & leather wrapped steering wheel. So I searched for a no-frills X model. I found one with basic sound, CD, Dana 35 rear and 3.07 ring & pinion. I have put into it the about the same amount of money (around $1500) as a Sport and have a really good trail jeep. The only drawbacks are the Dana 35 axle has a bad rep for breaking with a locker and the 3.07 gearing is really weak for 31 inch tires.

            I would say go with the X package with the 3.73 gear ratio. If you want the Dana 44, you can ONLY get it with the Sport or Saharia, not with the X, which sucks.

            Comment


            • #7
              Thanks for the input, but my wife and I can't get a new one right now so we picked up a used 2001 SE. It is, for right now a daily driver. My YJ is going to be the trail rig for now. But we are the proud new owners of a Jeep Wrangler SE 2001, 2.5, half doors, manual trans., soft top.
              Something new to upgrade.

              Comment


              • #8
                hehe.........why didnt ya go for the rubicon.....u mite have to give over ur childs first born, but it just mite be worth it, lol, :P just jokin,.........happy wheelin'
                -goat

                Comment


                • #9
                  Re: YJ?

                  Originally posted by evanpersing
                  what does yj stand for if tj stands for trail jeep?
                  Well as stated above, TJ and YJ don't officialy stand for anything. You can make up whatever you want it to mean. For YJ, some of the more popular are Yuppie Jeep, Young Jeep, Yucky Jeep.

                  Comment


                  • #10
                    Ok here comes scrambler013 with the fountain of useless info. The reason that the Wrangler YJ is called the YJ is because of Canada. When Crysler made the Wrangler they mada a Canadian model and couldn't sell it as a Wrangler. There was already a Canadian company that made a Wrangler so Jeep needed to call it something. So in keeping with the -J naming system the called it a YJ, and TJ. If you take a trip to Canada and see a Wrangler up there it will be badged with YJ all over it, it's kinda cool, my wife and I saw one a few years ago.

                    Comment


                    • #11
                      Originally posted by scrambler013
                      Ok here comes scrambler013 with the fountain of useless info. The reason that the Wrangler YJ is called the YJ is because of Canada. When Crysler made the Wrangler they mada a Canadian model and couldn't sell it as a Wrangler. There was already a Canadian company that made a Wrangler so Jeep needed to call it something. So in keeping with the -J naming system the called it a YJ, and TJ. If you take a trip to Canada and see a Wrangler up there it will be badged with YJ all over it, it's kinda cool, my wife and I saw one a few years ago.
                      Well, this is kinda refered to in my original post, but this is more background on it.

                      Not to flame anyone, but I was hoping to keep this a "simple" Q and A type post, but any input is appreciated.

                      Comment


                      • #12
                        Ok then how about this? I just bought a '01 TJ SE. The first thing I am going to do is put stainless accents on it, it's black and I think that looks good. How hard is the suspension lift to install in the TJ? How high is sufficient for 31x11.5x15's? Would you also reccomend a body lift? I have one on my YJ and it works nice, but the shifters are different than the TJ. What kind of modifications go along with a body lift? I didn't have to really do anything to my YJ, I will however lengthen the gas tank filler tube when I drop the tank to replace the fuel pump. I hope that is better with the Q&A.
                        Hey goat, I would have but the payment would have been more than my house payment. I can't rationalize that. Besides it is more fun putting stuff in the Jeep myself.

                        Comment


                        • #13
                          Originally posted by scrambler013
                          Ok then how about this? I just bought a '01 TJ SE. The first thing I am going to do is put stainless accents on it, it's black and I think that looks good. How hard is the suspension lift to install in the TJ? How high is sufficient for 31x11.5x15's?
                          A suspension lift depends on what lift you do. If just a budget boost, pretty simple, replacing springs, little harder, but not much, when installing long arms, track bar brackets, adj. trac bars, harder, but all can be done in a driveway. Also, once you go above 2" in lift, driveshaft vibration becomes an issue, so you will need either a MM lift, t-case drop. or a SYE. More expense than difficulty involved there. For 31" tires, stock suspension will work, but as stated above in original post, there may be some rubbing. Also, did you mean 10.5" wide? 31x11.5x15 is a very odd ball size.


                          Would you also reccomend a body lift? I have one on my YJ and it works nice, but the shifters are different than the TJ. What kind of modifications go along with a body lift?
                          If looking for a really cheap way (inexpensive) to get a little extra clearance, then the body lift is a good way to go. As stated in the original post, with a 1 to 1.5" body lift, no other modifications should need to be made.

                          I hope that is better with the Q&A.
                          Actualy, this question would probably be better asked in the general Wrangler forum. Not as many poeple will read this once they have read it once, so your question may not get answered as fast.
                          Once again, as I said in the original post, I would like to have this as a "I have the question and answer" type post, not where all the FAQ get asked, that is what the forum is for, not this post. I want to make this so people can read and hopefully have their question answered before having to post it. But it is no biggie.

                          Comment


                          • #14
                            31x11.5x15 is an oddball size but if you look at National tire and wheel they have some tires in that size. Example is the Mickey Thomson Baja Claw.
                            Any way thanks for the input and info on how you want to run this little thread. sorry about the confusion.

                            Comment


                            • #15
                              Hey, no problem. It's not like this is my website or anything. Just trying to be helpful.
                              I knew there were some 31x11.5x15's out there, just not many, Micky Thompson and Super Swamper are the only ones off hand that I know of. I just wish someone would make 32x10.5x15. If you go with 11.5" wide, you will definatly have rubbing on full turns unless you adjust steering stops with 2, maybe 3 washers, but your turning will be greatly reduced, and rubbing on the flares when disconnected unless you do the body lift. Good luck with what ever you do.

                              Comment

                              Working...
                              X