My best guess is that you have:
#1. Air trapped in the rear system.


Brake bleeder recommendation
http://www.peachparts.com/shopforum/showthread.php?p=455818

Power Bleeder or what?
http://www.peachparts.com/shopforum/showthread.php?p=707359

Brake bleeder - power bleeder Homemade
http://www.peachparts.com/shopforum/showthread.php?t=117258






Have a great day.

__________________
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