NEXTGEN Drivetrain valve body swap

[Master Chief BT]

I know there are some Banks haters watching this forum but I am a believer. Trans/Oil/Diff Pans/Cover make all the difference in the world if you doing the changes on your garage floor in my honest opinion. The engine bolt on upgrades by Banks for me make a huge difference also, again my opinion only. Waiting patiently for Banks to drop the monster exhaust for my truck and I will add that also. Sounds like you’ve got a handle on the VB rebuild so will be watching for your thread updates!

 

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[R467X]

I know there are some Banks haters watching this forum but I am a believer. Trans/Oil/Diff Pans/Cover make all the difference in the world if you doing the changes on your garage floor in my honest opinion. The engine bolt on upgrades by Banks for me make a huge difference also, again my opinion only. Waiting patiently for Banks to drop the monster exhaust for my truck and I will add that also. Sounds like you’ve got a handle on the VB rebuild so will be watching for your thread updates!

I've got their diff cover, intake and soon the trans pan. Everything else I have is VSE with the exception of the PPE hot/cold pipes. I just hate red or id have gone with banks!

 

[Master Chief BT]

I also have the Banks Pedal Monster and Derringer installed. They both work good for me, especially when towing. Just had a ReadyLift 3.0 SST level kit with Falcon Shock absorbers installed. That also is a nice upgrade.

 

[R467X]

I also have the Banks Pedal Monster and Derringer installed. They both work good for me, especially when towing. Just had a ReadyLift 3.0 SST level kit with Falcon Shock absorbers installed. That also is a nice upgrade.

Update for anyone considering this upgrade:

I want to preface this and say that Nextgen - so far - has had excellent service. They've been checking on me a few times per week while I was waiting on my TCM. I even spoke with the owner Nate himself (who's famous on YouTube).

On Tuesday I got my TCM back and was going back and forth with Nextgen about the fluid fill procedure. Nate told me to make sure all the gears shifted and to go on a test drive.

Immediately I noticed that it took 4-5 seconds for my gears to shift to R or D and it would come with a violent jolt. I went on a test drive anyway. A block away, tranny wouldn't shift at 2000 RPM before another violent jolt. I returned back and believed the issue was TCM not being tuned.

Today I got the tune, but the issue remained. The tuner, where I spent nearly 10 grand over two years, displayed nothing but shit service.

Anyways - I spent all day diagnosing this issue and using a fancy scanner I was able to clear all codes except one - P0777 - stuck selenoid valve #2. I am now convinced that, with my luck, I got a bad valve body.

Hoping Nextgen will send me a new one on Monday or Tuesday next week.

 

[gemarsh]

I just hate mods that don't work right.

It looks straight forward to do. I doubt it was a installation issue. Unless the torque setting was set to ft/lbs instead of in/lbs.

It sucks having to go back in there again I bet. The fluid fill procedure is for the dark ages.

 

[R467X]

I just hate mods that don't work right.

It looks straight forward to do. I doubt it was a installation issue. Unless the torque setting was set to ft/lbs instead of in/lbs.

It sucks having to go back in there again I bet. The fluid fill procedure is for the dark ages.

I bought a in/lbs torque wrench just for this! I also spent the extra $$ for their built valve body. My rule of not F&CI*"NG with trannies has once proven itself true.

I'm confident in my diagnostic as I did not have any electrical issues leading up to this and this issue started before the tune was ever installed. The P0777 code, when you look it up, is consistent with the same symptoms I have.

As to the fill procedure - it actually isn't that bad. I bought a motive power fill and took me a hot minute to understand how it worked. Pump a bunch until psi goes up and leave it be - fluid will get pumped in on its own until it drains out the level hole.

Will keep you guys posted

 

[Tman08]

I bought a in/lbs torque wrench just for this! I also spent the extra $$ for their built valve body. My rule of not F&CI*"NG with trannies has once proven itself true.

I'm confident in my diagnostic as I did not have any electrical issues leading up to this and this issue started before the tune was ever installed. The P0777 code, when you look it up, is consistent with the same symptoms I have.

As to the fill procedure - it actually isn't that bad. I bought a motive power fill and took me a hot minute to understand how it worked. Pump a bunch until psi goes up and leave it be - fluid will get pumped in on its own until it drains out the level hole.

Will keep you guys posted

I also tried to upgrade my transmission before it became an issue with no success first I received the wrong parts from NexGen and they said they would refund my valves since I did not receive the right parts and had to cancel the trip.
I continued on working through the valve body issues that I was having with a P0 746 and P0700. After numerous calls the next GEN I end up getting a stock valve body to replace the one I was trying to upgrade. I’ve been trying to get a hold of Nexgen , but they will not return my calls or emails about the refund. Had the same issues with shifting and not going into gear, took a few seconds. I had the valve body in and out of the transmission five times trying to figure out the issues with no success.
Frustrated

 

[R467X]

I also tried to upgrade my transmission before it became an issue with no success first I received the wrong parts from NexGen and they said they would refund my valves since I did not receive the right parts and had to cancel the trip.
I continued on working through the valve body issues that I was having with a P0 746 and P0700. After numerous calls the next GEN I end up getting a stock valve body to replace the one I was trying to upgrade. I’ve been trying to get a hold of Nexgen , but they will not return my calls or emails about the refund. Had the same issues with shifting and not going into gear, took a few seconds. I had the valve body in and out of the transmission five times trying to figure out the issues with no success.
Frustrated

Did you buy the kit from them or the built valve body? While I am frustrated with this, I feel better knowing that I'm not the only one. I don't know what went wrong here.

Did your issue go away once you put the stock VB in?

My valve body just got delivered back to them today... Waiting to hear what went wrong and about a replacement. I'm confident that the built valve body I got - something was assembled by them incorrectly.

As far as getting their customer service - I found that if you keep calling and pressing 3, someone will eventually answer. Taken me 4-5 times over a period of probably 15 mins. I haven't had any issues really with their service. They paid for return shipping too which was nice.

I'd have gone with the cheaper Suncoast or DHD but neither one would respond to my emails asking what was different about them vs next gen. I went Nextgen because of the lifetime warranty and because their tech answered my email in detail.

 

[Tman08]

Did you buy the kit from them or the built valve body? While I am frustrated with this, I feel better knowing that I'm not the only one. I don't know what went wrong here.

Did your issue go away once you put the stock VB in?

My valve body just got delivered back to them today... Waiting to hear what went wrong and about a replacement. I'm confident that the built valve body I got - something was assembled by them incorrectly.

As far as getting their customer service - I found that if you keep calling and pressing 3, someone will eventually answer. Taken me 4-5 times over a period of probably 15 mins. I haven't had any issues really with their service. They paid for return shipping too which was nice.

I'd have gone with the cheaper Suncoast or DHD but neither one would respond to my emails asking what was different about them vs next gen. I went Nextgen because of the lifetime warranty and because their tech answered my email in detail.

I bought the rebuild kit from NexGen I watched the video read the directions numerous times was confident that I would be able to rebuild the valve body specially since they claim it’s only a three out three out of 10 skill level to complete this job. And I have experience in hydraulics and pneumatics so I did not think it would be that big of issue.
As far as calling them, I called them every day to reach customer service, which I got no reply. Tyler in the tech department is the one that told me to call and talk to somebody in customer service for the refund which I have yet to have any contact with anybody from next GEN .

 

[R467X]

I bought the rebuild kit from NexGen I watched the video read the directions numerous times was confident that I would be able to rebuild the valve body specially since they claim it’s only a three out three out of 10 skill level to complete this job. And I have experience in hydraulics and pneumatics so I did not think it would be that big of issue.
As far as calling them, I called them every day to reach customer service, which I got no reply. Tyler in the tech department is the one that told me to call and talk to somebody in customer service for the refund which I have yet to have any contact with anybody from next GEN .

Thats who I've been dealing with. Honestly if they promised you a refund and you made reasonable attempts to get it sorted with no luck then you should contact your credit card company and dispute the charges.

Just to clarify - after you rebuilt your VB and got it installed, you turned the truck on and noticed the error codes with delayed harsh shifting. You, then you got an OEM VB and when you installed that - your issues went away?

I specifically bought the full assembled by them option because I hate transmission work - it's too complicated.

I can rebuild an engine and do just about anything else. Transmissions give me headaches and this latest experience is yet another reason why I don't mess with them. I am probably going to stomach a transmission shop next time something of the sort needs to happen.

When my original VB arrived it took about an hour for them to say my replacement js on the way... So far it's been 5 hours and nothing so I'm assuming they did find something wrong.

 

[Tman08]

I bought the rebuild kit from NexGen I watched the video read the directions numerous times was confident that I would be able to rebuild the valve body specially since they claim it’s only a three out three out of 10 skill level to complete this job. And I have experience in hydraulics and pneumatics so I did not think it would be that big of issue.
As far as calling them, I called them every day to reach customer service, which I got no reply. Tyler in the tech department is the one that told me to call and talk to somebody in customer service for the refund which I have yet to have any contact with anybody from next GEN .

Keep me posted if your next VB works.

 

[Tman08]

Keep me posted if the next VB works

 

[JayRich]

I have also had the same issues with a NG VB. My VB was sent back under warranty with the promise of having it back today. No answer or call back yet. Truck has been down 2 weeks now with issues since trying their products. Lucky to get 1 email and maybe one phone call a day. VERY unimpressed overall.

 

[R467X]

I have also had the same issues with a NG VB. My VB was sent back under warranty with the promise of having it back today. No answer or call back yet. Truck has been down 2 weeks now with issues since trying their products. Lucky to get 1 email and maybe one phone call a day. VERY unimpressed overall.

Wow. I most definitely did not think there would be more people with the same issue as me. They must have had either a bad batch or a new employee that screwed who knows how many of these valve bodies.

My valve body is out for delivery today. I don't know when I'll be able to get this done - planning for tomorrow if not then Monday.

I did email them yesterday to ask if they can share what went wrong but have not heard back.

I refuse to reuse the transmission fluid so I had to go buy another 23 quarts + a new filter. If the same issue persists I'm going to start demanding a full refund and buy either a Suncoast or DHD for cheaper.

This valve body problem is really turning into a. Double edged sword. On one side - don't want to wait for my rear wheels to lock up going 70 while towing. On the other side, I want to bullet proof and not worry about it. But then you get the premium brand and all of a sudden - big problems.

 

[Master Chief BT]

I have also had the same issues with a NG VB. My VB was sent back under warranty with the promise of having it back today. No answer or call back yet. Truck has been down 2 weeks now with issues since trying their products. Lucky to get 1 email and maybe one phone call a day. VERY unimpressed overall.

What kind of issues did you have if I can ask? Was it the complete rebuilt VB or did you install their kit parts in your stock VB? Everytime I’ve called for tech assist and questions I’ve dealt with Tyler and he seems to be very knowledgeable. I was still having some hard downshift shift issues 5-4-3 downshift over 35 mph after the active relearn and my complete VB install. I had the fluid level verified and just did a Service Fast Learn TCM flash and about 500 miles into the Fast Learn and smoothing out on that 5-4-3 downshift now. Following this thread.