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Unread 08-27-2014, 08:42 PM   #1
Jruth
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1993 YJ Wrangler 
 
Join Date: Mar 2013
Location: cleveland, TN
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problem developing and getting worse

my 1993 started clunking when going up a hill and it gradually got worse now you can set your watch by it and today it started like no more power accompanied by a loud grind let off gas....push gas and go but it still just clunk..clunk..clunk like right below me was told it might be the t-case chain slipping, took the case apart didnt see anything out of the way. HELP!!!!! its a 4 litre aw4 np231 dont know how much lift 4 link rear 3 link front fox 2.o coilovers dana 44s 410 gears clears 36s easily

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Unread 08-27-2014, 10:52 PM   #2
mike134
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I'd give the catalytic converter a couple taps with a screwdriver to see if the insides are destroyed before suspecting the transfer case. Tough to diagnose clunking through the innernets.
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Unread 08-28-2014, 04:28 AM   #3
Jruth
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it doesn't have one
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Unread 08-28-2014, 07:02 AM   #4
Jruth
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bump
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Unread 08-28-2014, 07:58 AM   #5
bharris68
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1989 YJ Wrangler 
 
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Welcome to the forums I'd suggest posting pictures up to a photohosting site and then linking them here so that we can get a look at what you're talking about, which will help us understand the overall configuration and lead to some troubleshooting.


In the description you indicate you have a front 44 with an air locker and a rear 44 with a full spool. You've got a pretty extensive list of modifications which is awesome, however may be impacting the "streetability" of the Jeep.


That spool in the rear will wreak havoc on the transfer case, yes - but the UJoints will suffer first There is always a trade off in the modifications you do.


My first line of suggestion if you've checked the transfer case is to give the drive shafts a good crank while it's on the ground and note ANY Play in them. That play will turn into a lot of racket, especially under load on a hill.
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Unread 08-28-2014, 08:12 AM   #6
Jruth
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I don't think pictures will help cause it all looks normal I always turn very gently with no throttle input
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Unread 08-28-2014, 08:28 AM   #7
bharris68
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Thank you - remember, having a spool in the back will entirely force both wheels to spin at the same speed on pavement - since that is a huge problem during ANY turn on pavement (the outside wheel MUST move faster than the inside wheel - basic physics), nomatter how slight, that force will be translated back along the driveline to any loose or worn or weak point.






When will you get a chance to test the drivelines for play? Possibly grease the UJoints?
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Unread 08-28-2014, 08:42 AM   #8
Jruth
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Thanks for your help who's got good greasable u joints and how much
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Unread 08-28-2014, 08:44 AM   #9
Jruth
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You think that grind comes from u joints?
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Unread 08-28-2014, 08:55 AM   #10
bharris68
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Very likely, yes - I had a similar problem in my former Range Rover, greasing the UJoints made it quieter, but ultimately they had to be replaced. Not expensive, but just time consuming.


Many UJoints come from the factory with Grease Zerks in them - check them first. If not, there are a variety of them on the market - check NAPA or Oreily premium lines first for the model/year of your D44's
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Unread 08-28-2014, 03:31 PM   #11
Jruth
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Appreciate it man
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Unread 08-28-2014, 04:24 PM   #12
Luuca
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I'm confused.. would a bad u-joint cause lack of power?

Quote:
Originally Posted by Jruth View Post
and today it started like no more power accompanied by a loud grind let off gas....push gas and go but it still just clunk..clunk..clunk like right below me
Perhaps I need to Grovel in the Gravel at Grumpys to comprehend this new member.
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Unread 08-28-2014, 04:32 PM   #13
Jruth
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Not lack of power a lack of anything a neutral feeling
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Unread 08-28-2014, 04:41 PM   #14
Luuca
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Quote:
Originally Posted by Jruth View Post
Not lack of power a lack of anything a neutral feeling
Ya that neutral feeling is no bueno..

side bar - I went to a bar called Grumpys in or near Cleveland Tennessee when I was in the service. I don't remember much about that night except two things - When I ordered a bud, the guy put up a bottle and said, " 75 cents".. my reply, "make it a six pack"

and rolling a t-top firebird off a bridge into freezing water at 3:30 am and swimming out from the rear passenger seat.
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91 YJ "Alice" 2.5L AX5 D30/35 -Busted Knuckles Yellow Jeep Club Club #91

05 LJ Rubi "Ghost" 4.0L Auto NV241 D44/44 locked 4" RE Lift 1" BL 33s
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Unread 08-28-2014, 04:48 PM   #15
mike134
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Near my house there is a bar with free beer on Thursdays.

I don't go there because the bartenders are that awful...
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