6L80E into a 4th gen swaps
No cutting of tunnel required
Truck pan hangs pretty low, would recommend using a ctsv pan
stock 4th gen shifter and cable (custom bracket to mount to trans)
UPR t56 crossmember with hole drilled about ~2” forward
speed engineering tunnel mount torque arm
PST driveshaft (truck yoke is 1410 and have stock 10 bolt diff)
Using a ProEFI 128 ECU to control engine and communicate CAN data to TCM for proper operation (have 411 piggyback so dash/emissions work)
However this does not apply to all Transmission Models, some are:
-12 Mo/ 12K Mi.
-60 Mo/ 36K Mi.
-60 Mo/ 50K Mi.
The Best V8 Stories One Small Block at Time
But I do have a teeny tiny bit of experience with them

Stock they are usually good for 100,000 to 120,000 miles, depending on the condition of the ATF.
Changing the ATF and Filter every 30,000 miles, has shown that these Transmissions can make it past 200,000 miles.
If you are going to have one rebuilt...
One of the best things you can do for this Transmission is get an aftermarket Billet Torque-Converter for it.
But I do have a teeny tiny bit of experience with them

Stock they are usually good for 100,000 to 120,000 miles, depending on the condition of the ATF.
Changing the ATF and Filter every 30,000 miles, has shown that these Transmissions can make it past 200,000 miles.
If you are going to have one rebuilt...
One of the best things you can do for this Transmission is get an aftermarket Billet Torque-Converter for it.[
it is one of the Chevy performance parts. Chevy performance parts also supplies the torque converter with it. It sounds like a great package but just had a problem now I am having a problem with the warranty and was wondering if anyone else had had trouble. It has 140 kilometres on it. Not 140,000. As in about an hour and half driving time max.
Why a Billet torque converter.
Your Transmission came with a Warranty Booklet/ Packet.
Within it is the Purchase Date/ Warranty Start Date and the Warranty Duration.
You can also get this information from the Dealership that sold the Transmission to you.
If that Dealership did not install the Transmission for you...
I believe the Warranty Period is ONLY 12 Months/ 12K Miles.
It seems you are way beyond that...
But I would find out for certain.
The OEM Torque-Converters are unnecessarily problematic... so an aftermarket Billet replacement is strongly recommended.
Your Transmission came with a Warranty Booklet/ Packet.
Within it is the Purchase Date/ Warranty Start Date and the Warranty Duration.
You can also get this information from the Dealership that sold the Transmission to you.
If that Dealership did not install the Transmission for you...
I believe the Warranty Period is ONLY 12 Months/ 12K Miles.
It seems you are way beyond that...
But I would find out for certain.
The OEM Torque-Converters are unnecessarily problematic... so an aftermarket Billet replacement is strongly recommended.
I will definitively look into the torque converter though.
here is a link to the transmission I am talking about. They rate it for 650flbs of torque
https://www.jegs.com/i/Chevrolet-Per...66637/10002/-1
I will definitively look into the torque converter though.
here is a link to the transmission I am talking about. They rate it for 650flbs of torque
https://www.jegs.com/i/Chevrolet-Per...66637/10002/-1
Also I was joking about NOT knowing anything about the 6L80E/ 6L90E Transmission Family...
I was an Engineer for GM Power-Train (Hydra-Matic) like it shows in my signature.
To answer your question about people having issues with the 6L80E/ 6L90E Transmissions...
Yes!
Many people have had issues with these Transmissions; usually after 100,000 Miles due to Pump, Valve-Body, and other Hard-Parts Wearing/ Failing.
Some simple "Google" searching should show you a fair amount of the 6L80E/ 6L90E issues.
not 140 km or just under 87 miles. Which is what it has on it. 87 miles or 140 km. At any rate it was dextron soup. I will update when I get through the ordeal.
For running an 0411, can I use a T56 tune? Can the sensors just be spliced in to or would that affect signal quality?
Thanks





