Originally posted by techinspector1
The T56 uses 5th and 6th as overdrives, with 4th gear as a 1.00:1 OEM applications include the Dodge Viper, Corvette Z06, SVT Mustang Cobra, Holden Commodore, Holden Monaro, Aston-Martin V12 Vanquish and Aston-Martin DB7 Vantage. There are actually 25 different part numbers for the T56. You should probably be prepared to take a second mortgage on the house to buy one. Get in touch with G-Force and ask about prices between their upgraded T5 and the T56.
If I found one of these cars at a boneyard, what are the chances of me getting a good transmission? About how much for a good one? Would one from any of these OEM applications fit a 351C or would I need some kind of different bell housing or something, and if so, where would I get it and for how much? I checked with Fortes and an offhand comment on one of their sub pages quoted around 2,000 but I haven't got an official reply back yet. But what you said about a second mortgage appears to be right. I may just have to live with what I have until I get out of college or become rich and infamous, whichever comes first.