4L60E Build
Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
Anybody know the TransGo 46PLT96 separator plate is identical to a stock / GM separator plate? Or is it altered in some way? Reason I ask is my kit came with TransGo parts for valve body. I may just put valve body together stock as I can adjust in HP Tuners w/o modifying the valve body.
TransGo 46PLT96 Specs:
https://res.cloudinary.com/transgo/w.../46-PLT-96.pdf
https://transgo.com/product-details/46-plt-96/
TransGo 46PLT96 Specs:
https://res.cloudinary.com/transgo/w.../46-PLT-96.pdf
https://transgo.com/product-details/46-plt-96/
TECH Junkie
Joined: May 2012
Posts: 3,052
Likes: 716
From: Poplarville, MS
The TransGo separator plate comes with smaller feed holes that will need to be drilled to fit your application. It will come with an instruction sheet for which holes to drill and what size to drill them. It's not hard just a little tedious. If the check ball holes in your stock plate are not beat out, there is no reason why you couldn't reuse it and drill it to the TransGo instructions from you shift kit. If you do go with the TransGo plate drill all feed holes according to the instructions that came with it and then drill to the instructions from you shift kit. I can't remember but didn't your kit come from Dana if so, stay the course and follow his instructions.
The TransGo kit is better than just jacking up the pressures with HP Tuners. You have come this far why take the easy way out now? The valve body is what will define how well your transmission will work.
The TransGo kit is better than just jacking up the pressures with HP Tuners. You have come this far why take the easy way out now? The valve body is what will define how well your transmission will work.
TECH Regular
Joined: Jan 2013
Posts: 463
Likes: 179
There are a bunch of threads about 4L60E shift hole size and other mods. 2BFAST's 4L60E build thread comes to mind. I agree with bbond, tuning only won't cut it here. if you order a separator plate from Dana he will drill it for you with one of his "recipes". He may even give you suggestions over the phone for free especially if you are a previous customer.
Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
Okay interesting. I'll look at the 2BFAST thread. I have two TransGo valve body valves in the kit. One says ISO-CONV which replaces the TCC signal valve (name in ATSG guide). I assume that's to delete the TCC partial apply / PWM function?
Last edited by weinerschizel; Jan 27, 2022 at 08:48 PM.
Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
Why wouldn't a person just disable PWM / Partial apply in the HP Tuners / the tune? What advantage is there to deleting the physical hardware in the valve body (assuming valves seal up properly?)
I'm still sitting here looking thinking this over... I looked at 2BFASTS post on 4L60E build. Who here has built more than one transmission?
I'm still sitting here looking thinking this over... I looked at 2BFASTS post on 4L60E build. Who here has built more than one transmission?
TECH Regular
Joined: Jan 2013
Posts: 463
Likes: 179
most shops don't have hptuners, or ANY tuning gear for that matter. installing the valve is easy and disables the troublesome PWM TCC. I would personally block the valve AND tune it out given the opportunity.
TECH Junkie
Joined: Dec 2012
Posts: 3,621
Likes: 1,335
From: Iowa
Who here has built more than one transmission?
Uh...really?
even if you have hptuners...physically altering the valve body to have on/off lockup is superior to just tuning it for 100% pwm lockup
pwm lockup relys on a feedback bias on the valve and will never achieve the same feed of line pressure into the converter as you achieve with the flipped valve.
I've had this discussion with many other shop owners and operators. They have a vehicle giving them issue, converter codes, slips, etc.
They tell me "well it can't be that...I've tuned it for 100% pwm, can't be the issue"
I bet them $1...tell them to flip the valve or install a *fitzall* type valve...they do...it's fixed.
As for the rest of the valve body and pump...there are things that cannot be fixed in the tune on a 60e. Shift timing in the 60e is only altered by the pressure control solenoid. That's it.
ECM will increase or decrease pressure to alter shift feel
but...if you have a shift timing issue such as band release and 3/4 clutch tie up, or flare, etc that won't be fixed with a tune. You need to alter orifice sizing and springs etc in the valve body to properly remedy or alter the shift feel.
The pressure the pump can achieve has a physical max limit no matter what the tune does. You must change physical parts to be able to achieve more pressure.
So on and so fourth.
If this could all be magically done in the computer...we wouldn't be discussing the intricacies of valve body modification on this forum
Uh...really?
even if you have hptuners...physically altering the valve body to have on/off lockup is superior to just tuning it for 100% pwm lockup
pwm lockup relys on a feedback bias on the valve and will never achieve the same feed of line pressure into the converter as you achieve with the flipped valve.
I've had this discussion with many other shop owners and operators. They have a vehicle giving them issue, converter codes, slips, etc.
They tell me "well it can't be that...I've tuned it for 100% pwm, can't be the issue"
I bet them $1...tell them to flip the valve or install a *fitzall* type valve...they do...it's fixed.
As for the rest of the valve body and pump...there are things that cannot be fixed in the tune on a 60e. Shift timing in the 60e is only altered by the pressure control solenoid. That's it.
ECM will increase or decrease pressure to alter shift feel
but...if you have a shift timing issue such as band release and 3/4 clutch tie up, or flare, etc that won't be fixed with a tune. You need to alter orifice sizing and springs etc in the valve body to properly remedy or alter the shift feel.
The pressure the pump can achieve has a physical max limit no matter what the tune does. You must change physical parts to be able to achieve more pressure.
So on and so fourth.
If this could all be magically done in the computer...we wouldn't be discussing the intricacies of valve body modification on this forum
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?
Pouria Savadkouei
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine
Verdad Gallardo
7 Most Reliable High-Performance Engines GM Has Ever Built
Verdad Gallardo
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin
Verdad Gallardo
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
It is a simple question - I don't mean to offend anybody. Who has actually built a transmission, not just a one off transmission, and is contributing to this thread. Additionally, who also has experience tuning transmissions. I presume most of you have experience but I just don't know. I cannot say how many dead ends I've chased, dollars, and time I've spent to find out person I got advice from had no experience. @MaroonMonsterLS1 I presume you're a builder / shop. I think we spoke on PM and you sound like you really know yours stuff.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
TECH Regular
Joined: Jan 2013
Posts: 463
Likes: 179
The shop has probably figured out a lot of the Transgo stuff isn't required. This not only saves the customer money, but saves the shop money. they can now sell the customer their shift kit. There's some really good info in these threads, probably even enough for your own recipe...
https://ls1tech.com/forums/automatic...cer-plate.html
https://ls1tech.com/forums/automatic...l#post20367385
https://ls1tech.com/forums/automatic...2-3-shift.html
https://ls1tech.com/forums/automatic...cer-plate.html
https://ls1tech.com/forums/automatic...l#post20367385
https://ls1tech.com/forums/automatic...2-3-shift.html
TECH Apprentice
Joined: Jun 2021
Posts: 314
Likes: 17
From: The Niagara Frontier
https://cimg7.ibsrv.net/gimg/ls1tech...8a5521304b.jpg
Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
Awesome thanks! I started fiddling with my extra valve body... Measured the TCC signal valve. It's 11.2mm on both if memory serves me right. It won't wiggle a smidgen in my spare valve body... but rocks side to side easily in the one from my donor transmission.
I'm going to use the other valve body. Not even the TransGo ISO-CONV valve fit right in the donor transmission valve body. It wiggled too.
The spare valve body is from a 2007 transmission (according to casting mark on top) the other is from a 2003. Worm tracks look the same so assume it's fine.
I'm going to use the other valve body. Not even the TransGo ISO-CONV valve fit right in the donor transmission valve body. It wiggled too.
The spare valve body is from a 2007 transmission (according to casting mark on top) the other is from a 2003. Worm tracks look the same so assume it's fine.
TECH Junkie
Joined: May 2012
Posts: 3,052
Likes: 716
From: Poplarville, MS
It is a simple question - I don't mean to offend anybody. Who has actually built a transmission, not just a one off transmission, and is contributing to this thread. Additionally, who also has experience tuning transmissions. I presume most of you have experience but I just don't know. I cannot say how many dead ends I've chased, dollars, and time I've spent to find out person I got advice from had no experience. @MaroonMonsterLS1 I presume you're a builder / shop. I think we spoke on PM and you sound like you really know yours stuff.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
TECH Junkie
Joined: Dec 2012
Posts: 3,621
Likes: 1,335
From: Iowa
It is a simple question - I don't mean to offend anybody. Who has actually built a transmission, not just a one off transmission, and is contributing to this thread. Additionally, who also has experience tuning transmissions. I presume most of you have experience but I just don't know. I cannot say how many dead ends I've chased, dollars, and time I've spent to find out person I got advice from had no experience. @MaroonMonsterLS1 I presume you're a builder / shop. I think we spoke on PM and you sound like you really know yours stuff.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
I hired a shop to help me with some odds and ends. They have experience in both tuning and building 4L60e for high power applications. They are strongly advising against TransGo parts / valve body modification. I can definitely see he's talking about at the shop.
It's your trans. Do whatever you want. But it has been explained to you that a tune CANNOT change certain things. It just isn't physically possible. But hey...if you wanna spend your money and chase that dead end with them...be my guest
Thread Starter
TECH Apprentice
Joined: Nov 2008
Posts: 322
Likes: 30
From: Arizona
I appreciate conversation and pointers. I got everything taken care of at this point. And yes, Dana provided instructions as well as pre-drilled separator plate, etc.
Only thing pending is pin-less Sonnax accumulators which I asked Dana about. I'd prefer pin-less and kit came with pinned. Description says it comes with one pin-less and two pinned. He'll get me taken care of.
Only thing pending is pin-less Sonnax accumulators which I asked Dana about. I'd prefer pin-less and kit came with pinned. Description says it comes with one pin-less and two pinned. He'll get me taken care of.