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Unread 08-19-2009, 09:12 PM   #1
erekv2
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mult mods now stuck on 4H..Need help!

Hi everyone, I have a situation that I need some help in. I recently did the following MOD to my YJ and now I'm trying to figure out why my Transfer Case will only go to 4H and 4L. I need to get to 2H in order to move around during the weekend.

- Dana 30 swap to 1 with 4.10 gears from a 95 4banger.
- Eliminated the Vacuum Disconnect and went to a 1 pcs shaft from a 95 XJ.
- Added JB SYE to the transfer case
- Plugged the Vacuum hoses that went to the Vacuum disconnect, I left them there. I also left it connected to the T-Case.
- Added a Tom Woods Custom Drive Shaft Double Cardin.
- Swapped in a Ford 8.8 w/4.10 gears to match.

Everything is working as designed except for the fact that I can not get into 2H.

Please help... My guess is that it has something to do with Vacuum Disc or my T-Case and the new SYE?

Thank you.

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Unread 08-19-2009, 10:38 PM   #2
dadstoy
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Doesn't sound like anything would keep it in 4H except for the work done to the t-case. You may have to take it back down and make sure everything is ok inside.
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Unread 08-19-2009, 10:46 PM   #3
Castr8r
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I think it may be as simple as a linkage adjustment. Check your Chilton's for the procedure.
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Unread 08-20-2009, 04:59 AM   #4
Mark05059
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Im wondering if your saying its in 4x cuz the front shaft turns to the transfer or the light is on or exactly what tells you that your in 4x. With the 1 pc shaft from the XJ it will turn the front drive shaft even in 2wd.
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Unread 08-20-2009, 05:54 AM   #5
Alfons
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If you have a body lift, you may not have the room to push the shifter all the way forward to get it into 2H. You may need to trim some metal from where the shifter hits the hump to get it to go far enough.
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Unread 08-20-2009, 08:13 AM   #6
erekv2
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Great comments guys..thanks..So let me try to clarify and then ask some questions. I am in 4H, How do I know, I lifted my Jeep on a 4's and ran it on e1st gear. All I get is 4H & 4L. I don't have a body lift, I do have a 3.5 Fabtech lift on it. It had a transfer case drop, but do to the addition of the SYE and Custom drive shaft I don't need the drop anymore so everything was moved back up to it original state.

Dadstoy, Do you have any Idea what I would be looking for when I open up the t-case in regards to not going into 2H?

Castr8r, What linkage would you be talking about?


Mark05059, I don't believe that having a 1 pcs shaft will actually cause it to stay in 4H, I think that the transfer case is responsible for that feature. Please correct me if I am wrong.

Please keep the comments coming, Has anyone done the 1pcs shaft change in there YJ and where you able to run it in 2H?

Thanks
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Unread 08-20-2009, 08:29 AM   #7
erekv2
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Here are some Pic of the work:





Before:

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Unread 08-20-2009, 08:42 AM   #8
muddy93
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as Castr8r mentioned, check the linkage. he's talking about the linkage that goes from the T-case shifter, back to the T-case.

did you install the T-case drop, or was it put on by a PO? I ask because occasionally with a T-case drop, because the T-case is tilted back, it is necessary to adjust the linkage. With the T-case tilted back, the shifter will hit the back side of the hole in the floor, and won’t go all the way back to 4LO. The solution for this is to adjust the linkage. With the linkage adjusted to work properly with the T-case drop, when the drop is removed, you get the opposite effect, the shifter will then hit the front of the hole in the floor, and won’t go into 2hi.

To remedy the situation, disconnect the linkage, and manually put the T-case into 2hi. Then, make sure the shifter is in the 2hi position, and adjust the linkage to the correct length and reconnect it.
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Unread 08-20-2009, 09:15 AM   #9
erekv2
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Muddy93, The transfer case drop was installed by a local shop here in Miami, when I switched from the Puegout transmission to the AX15. Thanks for the advise I will take a look at what you are saying...However, It feels like I'm going into 2H but I don't get anything, I might be wrong. I have never delt with the linkage before so do you know of any links that might have a visual on this. I totally get what you are saying but since every project for me is something new, I always like to have a visual of things. I will also google images to see if anything comes up..
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Unread 08-20-2009, 09:33 AM   #10
jaywiz1977
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When you say don't get anything do you mean no wheel spin at all?If so you definitely need a linkage adjustment!
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Unread 08-20-2009, 09:35 AM   #11
muddy93
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no problem, here's a pic of the linkage,


after looking at the pic again, I realized that it would be tough for the shifter to hit the body(I compleatly forgot about the z-gate part of the handle assembly). however, it is still possible for the linkage to be out of adjustment.
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Unread 08-20-2009, 11:15 AM   #12
Mean Max
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You say you installed a SYE kit. Did you cut down the shift shaft? Your '87 should have had the longer shaft which needs to be cut down with a SYE install. Otherwise, it will bottom out on the case & prevent shifting into 2HI.

Look at this thread, paying close attention to post #5. I would bet that is where your issue is.

http://www.jeepforum.com/forum/f12/s...-still-695330/

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Unread 08-20-2009, 11:21 AM   #13
jaywiz1977
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he has the deep boss in his sye but max could be right.unhook the linkage and manually shift you tc(with the jeep off) if as far forward as the flat bracket on the TC will go isn't 2wd than max is spot on!If it is 2wd then adjust linkage accordingly.
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Unread 08-20-2009, 11:24 AM   #14
jaywiz1977
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Quote:
Originally Posted by muddy93 View Post
no problem, here's a pic of the linkage,


after looking at the pic again, I realized that it would be tough for the shifter to hit the body(I compleatly forgot about the z-gate part of the handle assembly). however, it is still possible for the linkage to be out of adjustment.
Z-gate pft whats that?

hahano zgate here!
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Unread 08-20-2009, 11:28 AM   #15
Mean Max
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Quote:
Originally Posted by jaywiz1977 View Post
Z-gate pft whats that?

hahano zgate here!
Too funny! I was just reading through your build thread & saw that pic! I love the homebrew linkage arrangement! Ingenious!

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No one here knows what they are talking about. You should try Pirate 4x4 they will be happy to help you.

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