Thanks Todd, I have been leaning towards the bowtie overdrives crossmember if I got t56 http://www.bowtieoverdrives.com/cata...php?ITEMID=690
Its the right price, and they seem reputable, I will look into your suggestion however.
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So a muncie 4 speed driveshaft fits a t56, I connected them and turned it. The input shaft turned with the driveshaft. So I guess the conclusion is that a muncie driveshaft works with a t-56. Now I just need to find a crossmember that wont have complications and wont break the bank.