727 Rebuild Advice

[ame="http://www.google.com/search?hl=en&safe=off&client=ubuntu&channel=fs&tbm=isch&sa=X&ei=_xHXTpOVFYz9sQLmgLXSDQ&ved=0CD4QBSgA&q=727+sprag&spell=1&biw=1600&bih=729"]727 sprag - Google Search[/ame]