sk8shorty017 said:
lol.. a rear "drum" upgrade would not even be worth your time if in fact the automatics did have bigger drums (which they dont). Just get a rear disc conversion off an si / ex.
Automatics and the EXs did have larger rear drum brakes than the M/T models. Almost a full inch in diameter.
Automatics + EX M/T & A/T = 7 7/8" X 1 3/8" <--- almost 8" diameter
CX, DX, LX, VX M/T = 7 3/32" X 1 3/16" <---- barely 7" diameter
In order to make this work however, you'd have to swap the entire brake assembly, otherwise your shoes would not make full contact with the drums. And so you're looking at replacing the entire trailing arm... just do a disc swap.