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2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

transfer case noise

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  #1  
Old 12-02-2013, 09:57 AM
dragracer501 dragracer501 is offline
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Default transfer case noise

Hey I have a 2001 dodge ram 1500 and I don't think the transfer case is stock because the shift pattern is backwards and the 4 wheel on the fly doesn't work anymore but when I am going 76 on the high way when you let off the gas it sounds like a grinding, banging noise coming from the transfer case. Does anyone have an idea as to what it could be
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  #2  
Old 12-02-2013, 10:26 AM
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97r/tram 97r/tram is offline
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Universal joint or the tcase snap ring is loose. Check the fluid level. Just over one quart.
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  #3  
Old 12-02-2013, 11:04 AM
dragracer501 dragracer501 is offline
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thanks man I know that it has fluid cause I checked it in august and it doesn't have any signs of leaking. and I will look into the snap ring. Where is the snap ring at in the transfer case?
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Old 12-02-2013, 11:07 AM
Arde Arde is offline
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Pull the tail shaft housing off the Tcase, it's on the output shaft right next to the bearing.
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Old 12-02-2013, 11:12 AM
dragracer501 dragracer501 is offline
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Ok and do you know any reason why my shift pattern is backwards and why it wont shift into 4wheel drive while moving. because when we bought the truck the guy mention it was the right transfer case for the transmission but the wrong tcase for that year.

The shift pattern now as is
2H
4H
N
4L
'
How it should be
4L
N
2H
4H

Last edited by dragracer501; 12-02-2013 at 11:22 AM..
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  #6  
Old 12-02-2013, 11:21 AM
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It's just the 98+ xfer case vs the 97 and down case. Where is 4l?
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  #7  
Old 12-02-2013, 11:26 AM
dragracer501 dragracer501 is offline
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on mine now 4 low is at the bottom towards the seat 2H is all the way forward towards the engine
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Old 12-02-2013, 11:29 AM
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You have a 97 and earlier t-case in there. No worries.

Not shifting is a problem though. Is the t-case engaging at all? Or is it just the front axle that isn't doing its job?
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Old 12-02-2013, 11:29 AM
Arde Arde is offline
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You just have an earlier year Tcase, that's fine.
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  #10  
Old 12-02-2013, 11:31 AM
dragracer501 dragracer501 is offline
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it egages fine and the cad works perfectly the tcase is a beast in 4l and 4h but do you know what model number the case is?
I just have to be completely stopped before I can shift so since its an older year that makes sense why I can shift on the fly
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Old 12-02-2013, 11:32 AM
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1500 should have an NV 231D. There is a round plate on the back side of the case that should have that information.
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Old 12-02-2013, 11:33 AM
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231d it should be. Mine has a Mopar one in it. Most ive seen have New Process 231d badges on them.
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Old 12-02-2013, 11:39 AM
dragracer501 dragracer501 is offline
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do they make the transfer case saver bushing for the 231 all I can find Is the saver for the 241 and where could I get the snap ring?
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  #14  
Old 12-02-2013, 11:40 AM
Lone136 Lone136 is offline
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What was the differnce from 97 T case to the 99. I know the speed O was in the tail shaff of the 97
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  #15  
Old 12-02-2013, 11:45 AM
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Shift pattern, and VSS are the only difference I am aware of.

They do make the t-case saver for the 231.
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  #16  
Old 12-02-2013, 11:51 AM
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thanks guy for the help I hope that it works Im tired of that noise when im on the highway
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  #17  
Old 12-02-2013, 11:52 AM
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VSS ? Mine is leaking and I can get a 97 T case from a friend of mine for 100 in good shape if it would work in my 99. Could you change the tail shaff on the 97 and install the 99 tail shaff ? I also know he don't have the shifter on would the one in my truck work
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Old 12-02-2013, 12:11 PM
dragracer501 dragracer501 is offline
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the other thing I should have put in there is when it is making the noise if I shift out of overdrive and the RMPs go up the noise definetly doesn't go away but it quiets down a whole lot.
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Old 12-02-2013, 12:13 PM
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The difference is like HeyYou stated. The VSS and shift pattern.. Not 100% sure on swapping the tail shafts. I went through like 5 tcases with the same noice you describe. Eventually they just split in half and spilled their guts out on the highway. If you replace the transfer case and still encounter issues your next step is the transmission.. Thats what mine ended up being. Guy that bought the truck had the same issue with his and there was an internal issue in the trans. Cant remember exactly what he said it was though..
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  #20  
Old 12-02-2013, 12:18 PM
dragracer501 dragracer501 is offline
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well I do know when I changed the trans filter the last time there were 3 pieces in the oil pan of what looked to be a ring they were about an 1/8th inch thick and I was told they were from a band inside the transmission could that be it cause I don't even know exactly what the pieces came from
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Old 12-02-2013, 12:18 PM
 
 
 
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