NV 5600
#22
12-07-2011, 09:43 PM
Actually its a "G56", and New Venture is currently owned by Magna Corporation if I remember correctly...
The NV5600 is a stout trans...it shifts like a truck transmission because internal components are big and heavy, and that takes a lot of time to slow down or speed up between shifts. It tends to be notchy, unlike a car transmission that shifts like butter...but I doubt you'll find a car transmission that will hold the GVW or torque input that a NV5600 will.
If you need one rebuilt, the rebuilder must know this trans well; or avoid them. There are lots of bad stories regarding poor rebuilds. As long as the case is good, most of the internal parts are still available...its mainly the cast iron case that's out of production.
They tend to be finicky on fluid...synchromesh is the required fluid, but each NV5600 shifts differently with a particular fluid. It takes trial and error to find one fluid for a particular NV5600. In my case, Redline MTL blended with about 20% Redline MT-90 works the best...and at 270k, I've ran a lot of different fluids through this trans.
The NV5600 is a stout trans...it shifts like a truck transmission because internal components are big and heavy, and that takes a lot of time to slow down or speed up between shifts. It tends to be notchy, unlike a car transmission that shifts like butter...but I doubt you'll find a car transmission that will hold the GVW or torque input that a NV5600 will.
If you need one rebuilt, the rebuilder must know this trans well; or avoid them. There are lots of bad stories regarding poor rebuilds. As long as the case is good, most of the internal parts are still available...its mainly the cast iron case that's out of production.
They tend to be finicky on fluid...synchromesh is the required fluid, but each NV5600 shifts differently with a particular fluid. It takes trial and error to find one fluid for a particular NV5600. In my case, Redline MTL blended with about 20% Redline MT-90 works the best...and at 270k, I've ran a lot of different fluids through this trans.
#23
12-08-2011, 07:10 PM
Diesel Enthusiast
just blew my 5600nv a couple weeks ago. Been towing a 45' double deck livestock trailer with a combined gvw of around 32,000 for about 200000 mles. I put in a reman. $3500 with labor. I had a broken tooth on low gear and just caught it right and ate the rest of it up. It did'nt owe me a thing,
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There is only a few hundred dollars difference between the reman and a used 5600.No mechanics I talked with would rebuild it themselves. I'v run Amsoil in every orrifice from day 1.
---AutoMerged DoublePost---
There is only a few hundred dollars difference between the reman and a used 5600.No mechanics I talked with would rebuild it themselves. I'v run Amsoil in every orrifice from day 1.
#24
12-08-2011, 09:13 PM
About a year back I got hung up on a very steep onramp and had to go to low gear. When I went to shift halfway up I don't think
I disengaged the clutch completely before i pulled the shifter. It made a hell of a clunk and I think thats what started it's demise. I was cruisin down the hiway a couple weeks ago and it just went caboom..Funny thing is it still caught fifth gear and I drove it 10 miles at 45 mph to get to a station.unhooked the trailer and played with gears and caught one and got it pulled out from under the trailer. I truly believe that 03 is magical cuz i'm normally not a lucky guy. PS.. the case was still a usable core.
I disengaged the clutch completely before i pulled the shifter. It made a hell of a clunk and I think thats what started it's demise. I was cruisin down the hiway a couple weeks ago and it just went caboom..Funny thing is it still caught fifth gear and I drove it 10 miles at 45 mph to get to a station.unhooked the trailer and played with gears and caught one and got it pulled out from under the trailer. I truly believe that 03 is magical cuz i'm normally not a lucky guy. PS.. the case was still a usable core.
#25
12-09-2011, 09:14 AM
I personally like the zf6 better. To me its smoother than the nv5600's I have driven. Nothing wrong with either one its just personal preference.
#26
12-09-2011, 05:40 PM
#27
12-11-2011, 07:15 PM
#28
12-13-2011, 07:44 PM
#29
12-17-2011, 07:10 PM
#30
12-17-2011, 07:31 PM
It took me almost 250k to get to the point where mine actually feels broken in and shifts nice. Although I wanted nothing to do with an automatic at the time, I didn't like the NV5600 either when I first got it.
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