12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

94 automatic trans

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Old Aug 25, 2010 | 05:36 PM
  #1  
farleytc's Avatar
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From: traverse city MI
Default 94 automatic trans

can anyone out there shed light on my trans problems. i cant keep a trans together in my 94 its not turned up and ive had 5 transmissions in it this last one has lasted the longest anything i should be looking into on why these are going out or are they just junk and i should put a 5 speed manual in it?
 
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Old Aug 25, 2010 | 05:54 PM
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monster12valve's Avatar
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From: willowick, ohio
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what are they doing? slipping?
 
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Old Aug 25, 2010 | 06:07 PM
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From: Sullivan County, PA
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go with the manual. stock auto's are junk. i just put a 5 speed in mine n i couldn't believe the difference. i can actually use my truck now
 
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Old Aug 25, 2010 | 06:33 PM
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From: Dansville NY
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There's a ton of info on here about the auto tranny's, I personally have the nv4500 but from what I've read if you have one built from the right shop, with the right parts they can be made reliable, look around the site and you will learn plenty. Good luck
 
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Old Aug 25, 2010 | 06:44 PM
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farleytc's Avatar
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From: traverse city MI
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well there not slipping from what i can notice all at once starting with od it starts tearing out clutches my last one took the flex plate with it trans got locked up and shatted the flytwheel. how hard is that to do the nv4500 swap and how much would iut cost me? i hate automatics now. the one im running now i had built supposidly with kevlar clutches and all the fixings so when that on goes the manuals going in.
 
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Old Aug 28, 2010 | 05:30 PM
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From: miami
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your tranny shop is doing something WRONG. Prince at PDL transmission did mine with trans go shift kit and it shift greart I've got 50000 mile on it no problems.
 
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Old Aug 29, 2010 | 01:27 PM
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From: arizona
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check all your codes, i put around 5 trannys in my truck in a 3yr period and found out that there was a problem with the torque convertor not locking or un locking all the way and burning up trannys within 2k miles, i wired up a switch for lock-up and another for od and it runs great now, shifts when I want it to and the current tranny lasted almost 10k until i burned up the forward clutches for 1st and 2nd
 
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