jsmith564

i cant find any info for someone who is looking to see what years the t56 are good to use. i have read some years are weaker, some are better. and so fourth.

my goal hear is to swap my a4 out for a m6. it's a stock car. and i dont plant on any track time. just wanted to know what years are better then others.

thanks

jmd

iTrader: (4)

For a 2002 Camaro?
There's nothing about a 98 box that's critically different from a 2002 box.

That said, you may like the MN12 ratios of a GTO box and it's triple/double cone synchros (vs the double/single cone versions in the F-body MN6 boxes.

The GTO offset shifter lever needs changed so you can use an F-body shifter.
The GTO bellhousing needs the matching starter.

TDP

iTrader: (23)

They're all pretty much the same from 1994-2002. The LT1 T56's just had the shorter input shaft and different front bearing retainer. The innards are interchangeable. The 1993 T56's were slightly weaker, but not really enough to make a true difference.

killagt

iTrader: (3)

I read some where, that 99+ t56 is weaker. and 96-98 is better.

TDP

iTrader: (23)

Simply not true

thesource

iTrader: (60)

The later model units had a better 2nd gear in them.

cgslow77

iTrader: (2)

so if your putting a 1995 t56 behind a ls1 you will need to switch input shafts? or can you use a extended pilot bearing ?

jmd

iTrader: (4)

Input and front adapter plate. Then set bearing preload.
That is too far to go w/ an extended pilot.

MEAN LT1

iTrader: (2)

93 T-56's had different gearing as well. I know the M28 version had the super low first gear and 6th gear wasnt as high as well. I forgot the characteristics about the other. However, first gear was diffeent on that one as well but not as drastic. Both were only rated at 350hp capabilities.

cgslow77

iTrader: (2)

how do you set the preload ?

jmd

iTrader: (4)

The rebuild manual on TTC's site used to detail how to do it.

TDP

iTrader: (23)

It's actually end play, not pre-load. If you pre-loaded the bearing, you'd have a noisy transmission. It should have zero up to a few thousandths of end play.

cgslow77

iTrader: (2)

ok got it.. whats ttc?

Mike454SS

iTrader: (4)

Transmission Technologies Corporation...Tremec is kinda their brand name for their "light duty" applications. http://www.ttcautomotive.com/English/home/home.asp...I know thats not a "sponsor" link...but it's kinda like posting a link to gm.com and saying "Chevrolet is their brand name for the Camaro and Corvette"...hope I don't get in trouble.

NHRATA01

iTrader: (10)

They switched manufacturers from Borg-Warner to Tremec. Well, switched might be the wrong term, but essentially Tremec bought the transmission division from Borg-Warner I believe in '98. However they did not change the design, nor to my knowledge even the manufacturing location.

They did switch the material of the blocker ring material from paper to carbon around 98ish, and there was always some scuttle that synthetic would destroy the paper rings for those early year transmissions.

calhoon

iTrader: (6)

The manufacture of the T56 moved from Muncie, IN ,to Tremec, central Mexico in '98.
The early T56, the M28 &M29, gearsets were not created equal to the later M6 & M12s.

Bone240sx

This was very helpful...thanks

yukonrott

OK fellas first off I'm not an engine intelligent person I guess...I can strip a car and paint it but engines aren't my thing. I recently swapped a 2000 5.3 into my 86 cutlass. It runs great but the trans needs to go. So if I went t56 what would I need...I'm leaning towards that guy up top here for a rebuilt one but as far as bell housing and stuff I don't know where to start Any help would be great thanks

gnx7

iTrader: (28)

You need an LS1 style T56 bellhousing/input shaft/front bearing plate to work on your 2000 5.3.

The '94-02 Fbody style T56's are essentially all the same internally. An LT1 trans won't bolt up to an LS1 style motor... but can be converted into an LS1 style with that style input shaft and front bearing plate/BH.

The '93 LT1 T56 has different gearing and you can't convert it over like the '94-97 LT1 T56's to LS1 style. The '93 tooth count is wrong.

GTO T56 (04-06) has a really short 1st gear.... they are geared to move a big heavy car. I like the Fbody gearing better. You could also buy a new T56 Magnum (TR6060 style internalls) which shifts light years better than any pre 2008 T56. I love mine!

Youngblood16

93 t-56 was for the LT1 motor, it was weaker and had different gearing/tooth count- has small block chevy style bellhousing aka NOT LSx
94-97 tranmissions were also for the LT1 motor aka the basic small block chevy, aka NOT LSx
the front cover, input shaft, and bellhousing are not compatable with an LS motor.

98-02 t56's are basically all the same, except the 2000-2002 had the "viper second gear" which had longer engagement teeth which= stronger gear, but I wouldn't worry too much.

The 98-02 t56 fits LS motors, ie LS1, LS2, LS3, LS6, LS7, and their iron block family members, which are the truck motors- 4.8, 5.3, 6.0. Although the t56 never came stock with the truck motors, they bolt right up.

yukonrott- you will need all of the following from a 98-02 Camaro Z28/SS-- bellhousing, clutch/flywheel assembly, throwout & pilot bearings, shifter and hydraulic clutch line.

you will also need a hydraulic clutch master cylinder/manual pedal assembly, hopefully someone can chime in on what year pedals/ master would be the easiest for your Cutlass... btw I almost bought an 87 Cutty(for an LS swap) nice cars.