Hard Shifting NV5600 - Dodge Cummins Diesel Forum
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post #1 of 16 (permalink) Old 11-21-2013, 03:15 PM Thread Starter
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Hard Shifting NV5600

So this problem has been eating away at me for a while now. Ever since I bought this truck almost 2 years ago, it has always had a hard shift problem. It almost feels like the clutch doesn't release fully right away. I figured it was the stock hydro's going out. I replaced them with the valair HD set from DAP. It definitely helped the problem but it hasn't completely gone away. I thought at first maybe the tranny is just starting to wear out being it has over 200k on it, but it feels exactly the same in every gear. I tried adjusting the clutch pedal out farther so it gets more travel and pushes the clutch more. Still feels like the clutch isn't releasing all the way at first. The truck doesn't try to creep forward on me or anything, I just have to hold the clutch in for about 2-3 seconds in between shifts if I don't want to "catch" the next gear hard. Without pulling the tranny, I am not sure what else I can do. Would a worn out pilot bearing/bushing cause this? The clutch doesn't slip or anything yet. I just don't want to wear my tranny out prematurely or whatever. I even replaced the trans fluid with no change in behavior. Sorry for the novel guys, just don't know what to do.


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post #2 of 16 (permalink) Old 11-21-2013, 03:20 PM
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Nv5600 is slow deliberate shifting trans. If you have a dual disc it is worse. When I changed my fluid it was smoother but still slow. Nature of the beast from what I've read on here.

2002 QCLB 4X4 NV5600 5.9 Cummins stock 110000 miles as of 10/26/2013 now has 113,000 12/15/2015
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post #3 of 16 (permalink) Old 11-21-2013, 03:25 PM Thread Starter
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I have heard that as well but I wouldn't think you would have to wait 2-3 seconds to get it into the next gear. If I double clutch it works fine. I can shift as fast as I want then. Just feels like the clutch wont let go at first.

2001 QC LB 4x4 6spd, Leveled, Edge Hot Comp, Valair HD Hydro's, Pacbrake, Valair SD clutch, ATS 3-piece manifold, ARP studs, Timbo APPS, 4in turbo-back straight, BHAF, 40hp Sticks, Raptor 100, Crankcase Vent Mod, HX35 Turbo, 3.55's, High Idle Switch (Thanks Ed!!!)
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post #4 of 16 (permalink) Old 11-21-2013, 03:27 PM
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dual disc??

2002 QCLB 4X4 NV5600 5.9 Cummins stock 110000 miles as of 10/26/2013 now has 113,000 12/15/2015
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post #5 of 16 (permalink) Old 11-21-2013, 03:34 PM Thread Starter
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I actually am not sure. I bought this truck about 2 years ago and the previous owner didn't know what was in it either. I am the third owner and the original owner is who put it in. It feels a lot stiffer than a stocker so it could be. It is real grabby taking off and what not so it could be.

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post #6 of 16 (permalink) Old 11-21-2013, 03:37 PM
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from other threads, DD makes it a lot worse

2002 QCLB 4X4 NV5600 5.9 Cummins stock 110000 miles as of 10/26/2013 now has 113,000 12/15/2015
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post #7 of 16 (permalink) Old 11-21-2013, 04:23 PM Thread Starter
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Thanks tons for the info. I think this spring I am gonna look at throwing a new clutch in it. I don't like how grabby this one is and just for the piece of mind. Knowing what is actually in there would make me feel a lot better. For all I know, it could be some Chinese piece of junk clutch and its not working correctly or something. Thanks again..

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post #8 of 16 (permalink) Old 11-21-2013, 05:04 PM
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I've had mine for 1.5 years now and never really looked or paid any attention to see if there's a inspection cover on bottom of bell housing. If so, remove it and look for two clutch disks.

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post #9 of 16 (permalink) Old 11-21-2013, 05:52 PM Thread Starter
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I thought about that. To cold for me to do it lately. I just got off the phone with a tranny shop in town and they said it sounds like the pilot bearing is probably gone. Thanks again for the info. Ill try to report back any findings.

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post #10 of 16 (permalink) Old 11-21-2013, 07:27 PM
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Mine has the same issue but only going into 3rd when it is cold. After it is warmed up she slides in just fine

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post #11 of 16 (permalink) Old 11-22-2013, 12:17 AM
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Mine was hard to find a gear. Sometimes it would grind but most to the time going in a gear was harder then I liked. I recently put in 7 quarts of royal purple synchromesh and what a difference that stuff has made. It didn't change when I upgraded hydraulics and went to a dual disc. So that's when I started researching fluids. And so far (not many miles, do to a blown HG after compounds and dual cp3's added) it shifts ultra smooth!

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post #12 of 16 (permalink) Old 11-22-2013, 05:56 PM Thread Starter
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I am looking at putting a clutch in it probably in Jan. If that and a new pilot bushing doesn't help enough, I will definitely look into putting some different fluid in it. Thanks all for the ideas. Gives me something to start on...

2001 QC LB 4x4 6spd, Leveled, Edge Hot Comp, Valair HD Hydro's, Pacbrake, Valair SD clutch, ATS 3-piece manifold, ARP studs, Timbo APPS, 4in turbo-back straight, BHAF, 40hp Sticks, Raptor 100, Crankcase Vent Mod, HX35 Turbo, 3.55's, High Idle Switch (Thanks Ed!!!)
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