chris51608

hi guys new to the forum ...im in the process of buying a t56 that needs rebuild...i wanna identify the t56 to see what gear ratios and service manual i will need but like always there a problem the tranny has not tag or sticker it only has 3 codes one on the bellhousing another one in the middle core and another one on the end ....also it has stamp borg warner so i kno it was build 1999 and down ...the numbers are front:1386172...middle:1386005902...and tail:1386066904.....the tranny is all dissasembled and will like to put it together with the right info and gear ratios ..what can i do or who can i talk to help me identify this borg warner tranny?
thanks chris

southsidecox

iTrader: (11)

your best bet to get all the rt info would be to contact some of the transmission builders here on this site,look in vendor section and pm them with pics and/or the part#

jmd

iTrader: (4)

How many teeth on the input shaft (4th gear)?
How long is the input?
Is the 3rd/4th synchro (the slider will mesh with the input shaft) a single friction material surface or double?

Any numbers cast or stamped into the bellhousing / middle / tailhousing are relevant to those parts and won't tell you what the whole assembly is.

Oh and PICS PICS PICS PICS DETAILED PICS.

chris51608

Thanks do u have any vendors u prefer or recommend?

TDP

iTrader: (23)

I'm a vendor here, and specialize primarily in T56s. Chances are you have an LS1 T56 for a 98-02 f-body. Gear ratios are as follows: 2.66, 1.78, 1.31, 1.00, 0.74, 0.50
This can be verified by doing some simple checks. Forget about the part numbers, all you have to do it count some teeth an take a measurement on the input shaft.
Measure the input shaft length form the bearing seat to the end of the tip and then count the teeth on the input gear. Post it up and we'll be able to easily verify what you have.

chris51608

Thanks tdp. I will asap

calhoon

iTrader: (6)

Those #s are the casting #s and don't really identify the model .
Even though Tremec began production of the T56 in '98, some of those had the Borg-warner labels on the castings. So the Borg Warner label doesn't really ID where it was made either. Especially '99...they were all made by Tremec.

chris51608

The measurement from the bearin seat to the tip of the input shaft are 6 7/16 that what my friend send me and its a 26 spline shaft ill post pic of it ...he also said its might be a camaros t56 tranny hes not sure hope this helps

jmd

iTrader: (4)

The total length of the LT1 input shafts are a little over 9.25". If it's that and 31 teeth, you have a 94-97 box.

bodusm

Hi I am having the same problem and wondering if one of the vendors can help me out.
I am trying to id the shaft teeth count because I am thinking of swapping the face and shaft to convert to a LS2 so that I can use the throwout bearing and clutch kit, I already have.
On the side I have 1386065902, right next to the shifter I have 1386066904 and on the tranni face, which I MAY replace along with the shaft to the LS2 is 1386172903.
I am thinking about doing the swap advertised on superchevy.com Rockland Standard Gear sells a kit....

Hey Mathew. I am trying to figure out if I have the 31 or 29 teeth.. Its from a 94 Camaro....
thanks...

OscarQ

Hey how is it going I have same problem and can't identify my the I would like to know the gear ratio and year of mine if possible. It's a 5 5/8 shaft and 26 teeth . Tail# 13-86-066-904 Middle# 13-86-065-902 front# 13-86 , 212-901. Some help would be great have bin having headache for a bit.

camarozz383

iTrader: (3)

You have a number I could call for some info and parts?