You sound like another guy who could use a shop manual..........
http://www.forabodiesonly.com/mopar/showthread.php?t=244981
Is this axle for certain "all original?" I've forgotten the differences, some here, and take this for what it's worth
http://www.mymopar.com/Mopar8_75RearEndGuide.htm
Thanks for the input!
I'm not sure of the originality of the axle. I'm going to pull them both and see what I find. This may be the time to drop the center section and have the gears changed out too. I've had them sitting on the shelf for over a year now.
I'll let you know how it goes...