two very basic questions about my transmission

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#802PalmBeach
Posts: 41
Joined: Mon Jun 14, 2021 10:33 am

two very basic questions about my transmission

Post by #802PalmBeach »

on my 2011:

1) how come I don't have a really nice shifter with the +/- manual shifting on the right side? (just has a simple rugged-looking straight up and down P,R,N,D,L.)
At first I figured only the '14-'17 had those but I think I'm wrong

2) do I have a 6L80E or a 6L90E? Dumb I know but pretty sure the seller told me they are equipped with a "CTS-V 6L90E"...
I think they're both strong and reliable, just wondering

:?: :?:
'12 Caprice PPV 6.0 L77
30 to 70 MPH in 4.0 seconds so far

'02 Silverado 5.3 L59
8.2 @ 86 (1/8 mile)

YouTube channel
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: two very basic questions about my transmission

Post by s/c'd cav »

#802PalmBeach wrote: Fri Jun 25, 2021 12:57 pm on my 2011:

1) how come I don't have a really nice shifter with the +/- manual shifting on the right side? (just has a simple rugged-looking straight up and down P,R,N,D,L.)
At first I figured only the '14-'17 had those but I think I'm wrong

2) do I have a 6L80E or a 6L90E? Dumb I know but pretty sure the seller told me they are equipped with a "CTS-V 6L90E"...
I think they're both strong and reliable, just wondering

:?: :?:
1 only the 11-13 9C3 has the shifter with the tap up and down

2 6L80E for the V8

only the trucks , ZL1 camaros and CTS-V got the 6L90E here in the states
User avatar
#802PalmBeach
Posts: 41
Joined: Mon Jun 14, 2021 10:33 am

Re: two very basic questions about my transmission

Post by #802PalmBeach »

s/c'd cav wrote: Fri Jun 25, 2021 5:23 pm
1 only the 11-13 9C3 has the shifter with the tap up and down

2 6L80E for the V8

only the trucks , ZL1 camaros and CTS-V got the 6L90E here in the states
Thank you for the reply. That brings me to my next questions:

1) is the 11-13 9C3 a compatible direct bolt-in in upgrade for mine?

2) in what ways is the 6L90E better, what is the weight difference, and of course is it a compatible direct bolt-in in upgrade for my 6L80E

also...

I'm about to try to fire up the car for the first time since the resurrection. Can I add 2 quarts of Dex VI LV to a (?) fill plug on the side and then run the car with the drain plug out until the excess bleeds off???

Is that the procedure to top off/ drain & fill?

Thank you all so much we are close and hoping for the best
'12 Caprice PPV 6.0 L77
30 to 70 MPH in 4.0 seconds so far

'02 Silverado 5.3 L59
8.2 @ 86 (1/8 mile)

YouTube channel
s/c'd cav
Posts: 1382
Joined: Mon May 30, 2016 3:12 am
Location: PHOENIX AZ

Re: two very basic questions about my transmission

Post by s/c'd cav »

#802PalmBeach wrote: Mon Jun 28, 2021 8:26 am
s/c'd cav wrote: Fri Jun 25, 2021 5:23 pm
1 only the 11-13 9C3 has the shifter with the tap up and down

2 6L80E for the V8

only the trucks , ZL1 camaros and CTS-V got the 6L90E here in the states
Thank you for the reply. That brings me to my next questions:

1) is the 11-13 9C3 a compatible direct bolt-in in upgrade for mine?

2) in what ways is the 6L90E better, what is the weight difference, and of course is it a compatible direct bolt-in in upgrade for my 6L80E

also...

I'm about to try to fire up the car for the first time since the resurrection. Can I add 2 quarts of Dex VI LV to a (?) fill plug on the side and then run the car with the drain plug out until the excess bleeds off???

Is that the procedure to top off/ drain & fill?

Thank you all so much we are close and hoping for the best
there are plenty of topics for the tap shift , and several people offer a box to do

the 6L90E is a stronger trans , it is not a direct swap , the rear crossmember that would fit our cars is very hard to get out of australia , people have put close to 1000hp through the 6L80E , and had them last , while others are lucky to put 350hp through them , having a OK tuner or a good tuner makes alot of difference

weight difference ive never looked into

if you trans pan has the plug in the bottom , that is how you check the level when the trans is in a certain temp range , but most overfill the trans some since they can have issues with the factory level under high G's
User avatar
#802PalmBeach
Posts: 41
Joined: Mon Jun 14, 2021 10:33 am

Re: two very basic questions about my transmission

Post by #802PalmBeach »

s/c'd cav wrote: Mon Jun 28, 2021 1:18 pm
#802PalmBeach wrote: Mon Jun 28, 2021 8:26 am
s/c'd cav wrote: Fri Jun 25, 2021 5:23 pm
1 only the 11-13 9C3 has the shifter with the tap up and down

2 6L80E for the V8

only the trucks , ZL1 camaros and CTS-V got the 6L90E here in the states
Thank you for the reply. That brings me to my next questions:

1) is the 11-13 9C3 a compatible direct bolt-in in upgrade for mine?

2) in what ways is the 6L90E better, what is the weight difference, and of course is it a compatible direct bolt-in in upgrade for my 6L80E

also...

I'm about to try to fire up the car for the first time since the resurrection. Can I add 2 quarts of Dex VI LV to a (?) fill plug on the side and then run the car with the drain plug out until the excess bleeds off???

Is that the procedure to top off/ drain & fill?

Thank you all so much we are close and hoping for the best
there are plenty of topics for the tap shift , and several people offer a box to do

the 6L90E is a stronger trans , it is not a direct swap , the rear crossmember that would fit our cars is very hard to get out of australia , people have put close to 1000hp through the 6L80E , and had them last , while others are lucky to put 350hp through them , having a OK tuner or a good tuner makes alot of difference

weight difference ive never looked into

if you trans pan has the plug in the bottom , that is how you check the level when the trans is in a certain temp range , but most overfill the trans some since they can have issues with the factory level under high G's
Ah ok I understand. At this moment I'm in the process of topping it off for the first (re)start and then I'll be flushing with plenty of good clean Amsoil brand Dex6. Next step after that we'll replace the filter and clean the pan and (magnet if needed), and then after I am able to save up we'll consider a Camaro style deep pan and filter.

Those are my current plans to try to salvage this stock 100k mile abused unit. If it can hold 400 wheel horsepower as a daily for about 5 years I will be very very happy !!
My Lady Racer working on the TORQUE SOUTH fleet.jpg
My Lady Racer working on the TORQUE SOUTH fleet.jpg (148.27 KiB) Viewed 3428 times
'12 Caprice PPV 6.0 L77
30 to 70 MPH in 4.0 seconds so far

'02 Silverado 5.3 L59
8.2 @ 86 (1/8 mile)

YouTube channel
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