can i put ford 5 lug rotors on my chevy dana 44 and use same outer shafts and hubs and brakes etc.?

yep, someone is selling "kits" on ebay for $150. Includes new 5 lug rotors, bearings seals, ect. ... Use the same brake calipers and such that you already have.... I'll find the link fo ya..

u need the small bearing spindles from chevy to do that, or swap everythign from the knuckles out

This one here is like 250 and comes with spindles.... http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=7932785188&category=33564

what is diameter on spindle size to make it work

It will take the 603049 inner bearing