they make a kit that is 5 lug rear drums for this exact reason to save some cash
http://www.steeda.com/products/5lug_conversion_kit.php
other companies as well but look good to me lol
This may be a little off point, but i did not want to start another thread. If I was to convert from a 4 lug to 5 would I be able to keep my rear drum brake (just to save some $$) or would I have to get the rear disc conversion as well?