Well I bit the bullet today and bought a re manufactured allison at 545. $1295 after core rebate, tax, freight included. $650 core deposit. By far the best deal I found for a factory reman with a 2 year unlimited warranty. Thanks for the heads up experience, may wait to rebuild my own transmission when I'm not going to drive the vehicle across the country. http://www.arsco.com
they ship fast too.