The guy that started this particular thread has his Super bee out with the new gear vender unit. He sounds extremely happy.
It does not sap power like OD transmissions do.
Think he said 2600 is 80 with 3.54 dana.
I helped go through his tranny and the unit just goes on like a trained duck.
SMR transmission sells one using a motor home output shaft which is much shorter
http://www.smrtrans.com/