Anyone a T56 expert?

[Zedn]

I just picked up a T56 for my cobra and im trying to identify what ratios it is.

I was told it was from a VE SS 6lt Commodore. The id tag has been broken off and the sticker peeled off. Sounds a bit dodgey but i dont think it is.

The gearbox is the type that has the shifter on a bracket off the back of the box. Does anyone know how to ID it without the tag? Surely they dont make the only id on a removable tag. I know i can work out the raito by rotating it, but it is hard to do that acurately.

BTW there is a TUET number printed on the side but i cant quite make it out. It looks like TUET8391 or 8381 but these arent shown on their website.

Cheers.

[boxhead]

From the description of the selector it does sound like a Commonwhore gearbox.

[Zedn]

Yes it is a commondore, but i want to know what ratio. I think all the VE's had the shifter like that which is the same as the TR6060. But i think only the HSV and the W427 had the TR6060.

[Merv and Sharon]

Maybe call Mal Wood in Warwick - he would know in a minute. Even send him a pic perhaps.

[joyridin']

Drop it in 6th gear and count the input vs. output. Here is the chart:

http://www.ttcautomotive.com/English...s/T-56.asp#Car

[Mrs flatchat]

And as Merv suggested www.malwoodauto.com.au/cobra.htm

[stumpeater]

Originally Posted by joyridin'

Drop it in 6th gear and count the input vs. output. Here is the chart:

http://www.ttcautomotive.com/English...s/T-56.asp#Car

That's a handy chart, thanks joyridin'

[Doubledip]

has it got a speed sensor in it?

[Zedn]

Hi Doubledip,

Im not sure. It has a sensor on the passenger side at the rear ( is this it?) and then a sensor towards the front on the driver side (reverse?). Do these boxes have a neutral sensor?





I found a post on another forum stating that this was what is in the VE. Can anyone confirm? This is not shown on the TTC link.

tag: 1386-000-013
OEM: Holden
Torque rating 450ftlbs
1st 2.66:1
2nd 1.78:1
3rd 1.30:1
4th 1.00:1
5th 0.74:1
6th 0.50:1
rev 2.90:1
input 26spline
output 27spline

[Gaz64]

Going on your pics, that is a VE T56.

Reverse light switch on RHS front and VSS at rear.

[joyridin']

Identification
Tag ID Application Torque Rating 1st 2nd 3rd 4th 5th 6th Rev Input Splines Output Splines
1386-000-003 1992 Dodge Viper 330 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
1386-000-005 1993-1995 Dodge Viper 550 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
1386-000-006 1993 Camaro/Firebird w/2.73 final drive "M28" 350 3.36:1 2.07:1 1.35:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-007 1993 Camaro/Firebird w/3.23 final drive "M29" 350 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-009 1994-1995 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-011 GM Aftermarket 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-012 Mustang 5.0 Aftermarket 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 10 31
1386-000-013 Holden 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-014 1996-2002 Dodge Viper 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
1386-000-016 1996-1997 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-017 1998 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-018 1996-2002 Dodge Viper 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
1386-000-019 390 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
1386-000-020 1999-2002 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-021 Aston Martin 450 2.66:1 1.78:1 1.30:1 1.00:1 0.79:1 0.63:1 2.90:1 26 30
1386-000-022 Holden Commodore 350 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-023 Corvette C5 375 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-024 375 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
1386-000-025 Corvette Z06 C5 385 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1 26 27
TNET-1077 415 2.97:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
TNET-1247 Dodge Viper 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
TUET-1259 4.6 Mustang Aftermarket w/mech speedo 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 10 31
TUET-1260 4.6 Mustang Aftermarket w/elec speedo 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 10 31
TUET-1452 Chevrolet Corvette 370 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
TUET-1453 Chevrolet Corvette 370 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
TUET-1576 415 2.66:1 1.78:1 1.30:1 1.00:1 0.79:1 0.63:1 2.90:1
TUET-1660 350 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 27
TUET-1694 2003-2004 Mustang Cobra 450 2.66:1 1.78:1 1.30:1 1.00:1 0.79:1 0.63:1 2.90:1 10 27
TUET-1806 Dodge Viper SRT-10 550 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
TUET-2022 Cadillac CTS-V 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1
TUET-2060 Mustang Cobra 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 10 31
TUET-2062 Dodge Viper 550 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 30
TUET-2066 Pontiac GTO/Holden Monaro 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1 26 27
TUET-5044 Cadillac CTS-V 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1
TUET-7477 T-56 Magnum Chevy Aftermarket 2.66:1 1.78:1 1.30:1 1.00:1 0.80:1 0.63:1 26 27
TUET-7484 T-56 Magnum Ford Aftermarket 2.66:1 1.78:1 1.30:1 1.00:1 0.80:1 0.63:1 10 31
TUET-8274 T-56 Magnum Ford Aftermarket 2.97:1 2.10:1 1.46:1 1.00:1 0.74:1 0.50:1 10 31
TUET-8277 T-56 Magnum Chevy Aftermarket 2.97:1 2.10:1 1.46:1 1.00:1 0.74:1 0.50:1 26 27

[Zedn]

Guys know its a T56 and i know is from a VE. What i am trying to confirm is the ratio. It has no tag on it.

[joyridin']

That is the easy part. Drop it in first, count the input vs. output turns. Do the same in 6th. You'll know what the ratio is real fast. Without a tag, that is the only way to do it.

My guess is it will have a .5 sixth gear ratio, which gives it a 2.66 first according to the chart, since just about all the T56's with that input output spline count have that ratio.

[Gaz64]

Originally Posted by joyridin'

Identification
Tag ID Application Torque Rating 1st 2nd 3rd 4th 5th 6th Rev Input Splines Output Splines
1386-000-006 1993 Camaro/Firebird w/2.73 final drive "M28" 350 3.36:1 2.07:1 1.35:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-007 1993 Camaro/Firebird w/3.23 final drive "M29" 350 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-009 1994-1995 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-011 GM Aftermarket 450 2.97:1 2.07:1 1.43:1 1.00:1 0.80:1 0.62:1 3.28:1 26 27
1386-000-013 Holden 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-016 1996-1997 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-017 1998 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-019 390 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
1386-000-020 1999-2002 Camaro/Firebird 450 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-022 Holden Commodore 350 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-023 Corvette C5 375 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
1386-000-024 375 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
1386-000-025 Corvette Z06 C5 385 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1 26 27
TNET-1077 415 2.97:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1
TUET-1452 Chevrolet Corvette 370 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
TUET-1453 Chevrolet Corvette 370 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 26 27
TUET-1576 415 2.66:1 1.78:1 1.30:1 1.00:1 0.79:1 0.63:1 2.90:1
TUET-1660 350 2.66:1 1.78:1 1.30:1 1.00:1 0.74:1 0.50:1 2.90:1 27
TUET-2022 Cadillac CTS-V 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1
TUET-5044 Cadillac CTS-V 2.97:1 2.07:1 1.43:1 1.00:1 0.84:1 0.56:1 2.90:1
TUET-7477 T-56 Magnum Chevy Aftermarket 2.66:1 1.78:1 1.30:1 1.00:1 0.80:1 0.63:1 26 27
TUET-8277 T-56 Magnum Chevy Aftermarket 2.97:1 2.10:1 1.46:1 1.00:1 0.74:1 0.50:1 26 27

Is it easier to read after removing all but 26/27 spline count?

There is still a 2.97 First with .50 sixth.

[Modena]

if you know it is a VE, surely the VE ratios are known/published? Call Holden?

[Zedn]

Well i discovered why i couldnt figure out what it is. It is a TUET8381 which is not listed on the TTC website or any of the other lists floating around.

I emailed TTC a few days ago and got a response last night. The ratio is different to all the boxes on the list:

1st = 3.01

2nd = 2.07

3rd = 1.43

4th = 1.00

5th = 0.84

6th = 0.56

Thanks for the input everyone.