No 4WD, Front Axle has locker - time for tcase NP231 - Jeep Wrangler Forum
Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ Tech Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 05-16-2009, 11:32 PM   #1
Newb
 
Join Date: May 2009
Location: Chicago, IL
Posts: 11
No 4WD, Front Axle has locker - time for tcase NP231

Hello all!!

I love the wrangler and I have a lifted 99 with no 4wd. I thought it might be busted spider gears after all that I've read so my buddy and I popped open the front end to find out there is a locker installed - sweet - everything is working just fine there after all.

I don't get the 4wd light to come on either when I shift to 4wd and I've reached underneath and shifted rather than using the shift lever (it wasn't lined up properly).

Additionally, I've found that I can get it to shift into and out of neutral and what appears to be 2wd low...doh!

Tomorrow will be the day where I try to take apart the t-case and see what's going on. I've read that it is likely a chain or a fork in it and I'm hoping it's easy to figure out because I'm a bigtime noobie at this stuff - as my friend puts it, a very ameture wrench jocky at this point...lol. I love how having a wrangler makes you want to learn about these things and fix them - like big legos or something...lol.

Anyway, any tips for a noobie who's taking the transfer case apart for the first time? It's pretty well lifted so I figured I'd just drain it, and climb under it and pop the bolts and see what happens...any thoughts?

Thank you! (and thanks for all the other posts - you guys sure know your stuff!!)

Rick

rickuski is offline   Quote Quick Reply
Old 05-16-2009, 11:37 PM   #2
Jeeper
 
jdhallissey's Avatar
 
Join Date: Aug 2008
Location: Gurnee,IL
Posts: 5,104
Send a message via AIM to jdhallissey
before you do that go through some check areas. Try adjusting the linkage. When it is 4lo do you get a grinding sound like it is not fully engaged? What do you mean it doesn't shift out? Are you doing it completely stopped or still rolling?

jdhallissey is offline   Quote Quick Reply
Old 05-17-2009, 12:02 AM   #3
Newb
 
Join Date: May 2009
Location: Chicago, IL
Posts: 11
I could get it into 4wd low, rolling slowly and shifting into low, but it was just 2wd low. I thought initially that meant there was something wrong with the front axle but upon further review, found out that is fine. Gotta be t-case, right?

As far as adjusting the linkage, I have a guy doing some welding stuff on that - he said the previous owner didn't have the length quite right and it needed another inch or so welded on. Before he did that, we did the 2wd low thing. The 4wd indicator light never came on when shifting to 4wd high or low. Does that indicate anything in particular being wrong with it??

I did stop and try to reach underneath and switch it while it was stopped recently after looking into the front axle, and I was able to get it to get into neutral. I couldn't engage 4l then, but I'd imagine that's just because it wasn't moving anywhere.

I've only had it for a half year now and really now getting to know it, but I've never felt "crow hop" that you'd be able to feel when the 4wd works. Initally I thought maybe you don't get that with this much lift and 35's...like I siad, I'm a newbie and still learning no doubt...lol.

Thanks for any and all help!
rickuski is offline   Quote Quick Reply
Old 05-17-2009, 01:15 AM   #4
Jack Lives Here!!!

WF Supporting Member
 
1BLKJP's Avatar
 
Join Date: Apr 2005
Location: Phoenix, AZ
Posts: 7,764
So does it feel like it's binding up inside when you try and shift it? Do you hear any odd noises coming from it while you are driving? I think in this case it probably will behoove you to pop it out and crack it open. Just take it slow and remember where you took everything from. Getting it off is easy. Speedo Gear, 4wd indicator plug, shift linkage, driveshafts and the bolts holding it to the tranny.

When you crack it open you'll have to take the yokes off, then the tail housing and a couple c-clips on the output shaft. Then take all the bolts out and remember where they go if I remember rightly the two 12-point bolts got at the top. There is a slot on either side of the case that you can use a screw driver to pry the case half apart. Check the chain, the shift fork (make sure it has the plastic ends on it), the output shaft on the "front" side etc.....
__________________
Thanks,
Jack Hickman

President - Arizona Off-Highway Vehicle Coalition
Vice-President - ASA4WDC
Arizona Rock Rats
1BLKJP is offline   Quote Quick Reply
Old 05-17-2009, 10:38 AM   #5
Newb
 
Join Date: May 2009
Location: Chicago, IL
Posts: 11
There's no feeling of binding at all - doesn't feel or sound like anything is wrong. Just can't get the power to the front wheels. I tried to test it by being on gravel and hitting the gas and can't get the front wheels to splash up rocks at all.

I thought I read somewhere that if you drain the case, you can take it apart while it's still attached to the vehicle - is that accurate? Since I've got a big lift on it, I can almost sit up underneath the thing to work on it.
rickuski is offline   Quote Quick Reply
Old 05-17-2009, 12:04 PM   #6
Jeeper
 
jdhallissey's Avatar
 
Join Date: Aug 2008
Location: Gurnee,IL
Posts: 5,104
Send a message via AIM to jdhallissey
With the 4wd light I love mine being off. Would by chance you have locking hubs on the truck? If they are unlocked you will not have the front tires driving. A picture of the front tires looking at the rim would be awesome to help you out.
jdhallissey is offline   Quote Quick Reply
Old 05-17-2009, 06:23 PM   #7
Jeeper
 
B86W05's Avatar
 
Join Date: Dec 2008
Location: Dayton, Ohio
Posts: 168
im sure you have checked but make sure the front drive shaft is attached
B86W05 is offline   Quote Quick Reply
Old 05-18-2009, 02:28 AM   #8
Jack Lives Here!!!

WF Supporting Member
 
1BLKJP's Avatar
 
Join Date: Apr 2005
Location: Phoenix, AZ
Posts: 7,764
Quote:
Originally Posted by rickuski View Post
There's no feeling of binding at all - doesn't feel or sound like anything is wrong. Just can't get the power to the front wheels. I tried to test it by being on gravel and hitting the gas and can't get the front wheels to splash up rocks at all.

I thought I read somewhere that if you drain the case, you can take it apart while it's still attached to the vehicle - is that accurate? Since I've got a big lift on it, I can almost sit up underneath the thing to work on it.
Yes you most definitely can. You basically just follow my suggestions above minus the part about taking it out. I've done dozens of SYE's in this manner, I think it's faster.

__________________
Thanks,
Jack Hickman

President - Arizona Off-Highway Vehicle Coalition
Vice-President - ASA4WDC
Arizona Rock Rats
1BLKJP is offline   Quote Quick Reply
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Jeep Wrangler Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
YJ front axle, CAD, 4 wheel indicator lights, vacuum diagrams Crzy4harly YJ Tech Forum 60 07-09-2008 09:33 PM
locker for a 97 TJ Dana 30 and dana 35 stock/upgraded axle shafts 91taurisho Classifieds Archive 0 02-20-2007 08:41 PM
Front and rear axle fluid Jick TJ Tech Forum 4 03-28-2006 10:44 PM
Front axle wont work gbjeep YJ General Discussion Forum 9 03-26-2006 07:43 PM
Front Axle seal yjswampthing YJ General Discussion Forum 12 02-21-2006 09:37 PM



» Network Links
»Jeep Parts
» Featured Product

All times are GMT -5. The time now is 02:13 AM.



Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC