WTB: Brake Parts, 44105
 

I need a Brake master cyclinder, proportioning vavle and left and right rear ebrake cables for an 83+ rear, i need these in order to swap in my GSL rear

it is easier to just buy the brake lines from mazda trix that are made to put in a disk brake rear into a non disk car.

BRAKE LINE KIT DOT 79-80 W/81-ON DISC R 14527-DOT $94.50

See bottom of page
http://www.mazdatrix.com/j-sslines.htm

Easier than swapping out all that junk. We did this to two 79's and loved it.